Nuclear Neighbors India and Pakistan are a Step Closer To War. Here’s a Timeline of How It Happened

An Indian police personnel stands outside a house that was damaged by Pakistani artillery shelling in Jammu on May 10, 2025. (Photo by Rakesh BAKSHI / AFP)
An Indian police personnel stands outside a house that was damaged by Pakistani artillery shelling in Jammu on May 10, 2025. (Photo by Rakesh BAKSHI / AFP)
TT
20

Nuclear Neighbors India and Pakistan are a Step Closer To War. Here’s a Timeline of How It Happened

An Indian police personnel stands outside a house that was damaged by Pakistani artillery shelling in Jammu on May 10, 2025. (Photo by Rakesh BAKSHI / AFP)
An Indian police personnel stands outside a house that was damaged by Pakistani artillery shelling in Jammu on May 10, 2025. (Photo by Rakesh BAKSHI / AFP)

A gun massacre of tourists on April 22 has pushed India and Pakistan a step closer to war, marking the biggest breakdown in relations since 2019.
Conflict between India and Pakistan is not rare, with the two countries having periodically engaged in wars, clashes and skirmishes since gaining independence from British India in 1947.
What’s different about this escalation is the frequency and intensity of strikes and retaliation.
Although the US had said it would not step in, it is now offering assistance in “starting constructive talks” between India and Pakistan to avoid future conflicts. But calls for restraint from the international community have yet to make an impact.
Here’s a timeline of how the latest conflict has unfolded:
April 22 Gunmen shoot and kill at least 26 tourists at a Pahalgam resort in Indian-controlled Kashmir, a major shift in a regional conflict that has largely spared civilians. The unidentified gunmen also wound 17 other people. A group called Kashmir Resistance, which India accuses Pakistan of backing, claims the attack.
Survivors tell The Associated Press that gunmen asked people if they were Hindu and then opened fire.
April 23 India downgrades diplomatic ties, closes the only functional land border crossing, and suspends a crucial water-sharing treaty that has survived two wars and a major border skirmish between the two countries.
India launches a manhunt for the Pahalgam assailants. Pakistan denies involvement with the attack.
April 24 India and Pakistan cancel visas for each other’s nationals, setting a deadline for them to leave. In retaliation, Pakistan shuts its airspace for all Indian-owned or Indian-operated airlines, and suspends all trade with India, including to and from any third country.
Government ministers on both sides hint the dispute could escalate to military action.
April 25 India says its troops exchanged fire with Pakistani soldiers at the Line of Control, the de facto border dividing the disputed Kashmir region.
Pakistan warns it could suspend an agreement that established the Line of Control, in what would be a major and worrying step. The United Nations urges both sides to “exercise maximum restraint.”
April 26 Pakistani Prime Minister Shehbaz Sharif vows his government will respond “with full force and might” to Indian attempts to stop or divert the flow of water.
Iran offers mediation, while Trump says he expects them to work out their differences. “There’s great tension between Pakistan and India, but there always has been,” he tells reporters aboard Air Force One.
April 30 Authorities in Indian-controlled Kashmir temporarily close dozens of resorts in the scenic Himalayan region after the deadly attack on tourists.
Troops from both countries exchange fire over the Line of Control for a fifth consecutive night.
Pakistan’s Information Minister Attaullah Tarar says his government has “credible intelligence” that India intends to carry out military action against Pakistan in the next 24 to 36 hours.
May 1 US Secretary of State Marco Rubio calls senior officials in India and Pakistan in an effort to defuse the crisis. US State Department spokesperson Tammy Bruce says Rubio in his call with India expressed sorrow over the killings in Pahalgam and reaffirmed the US’s “commitment to cooperation with India against terrorism."
Pakistan says Rubio emphasized the need for both sides to “continue working together for peace and stability” in South Asia.
May 3 Pakistan test-fires a ballistic missile with a range of 450 kilometers (about 280 miles). Missiles are not fired toward the border area with India; they are normally fired into the Arabian Sea or the deserts of the southwest Balochistan province.
India suspends the exchange of all mail from Pakistan through air and surface routes and bans the direct and indirect import of goods from its neighbor. It also bars Pakistani-flagged ships from entering its ports and prohibits Indian-flagged vessels from visiting Pakistani ports.
May 7 India fires missiles on Pakistan, which calls the strikes an “act of war” and vows to avenge those who died in the pre-dawn attack.
The missiles kill 31 people, including women and children, in Pakistan-administered Kashmir and the country’s Punjab province. The strikes targeted at least nine sites “where terrorist attacks against India have been planned,” says India’s Defense Ministry.
Pakistan claims it downed several Indian fighter jets.
May 8 India fires attack drones into Pakistan, killing at least two civilians, the Pakistani military says. India, meanwhile, accuses its neighbor of attempting its own attack and acknowledges targeting its archrival’s air defense system.
India evacuates thousands of people from villages near the highly militarized frontier in the Kashmir region. Flights remain suspended at over two dozen airports across northern and western regions of India.
Pakistan's Punjab province announces the immediate closure of all schools and other educational institutions.
May 9 India suspends its biggest domestic cricket tournament for a week following the escalating military tensions with Pakistan. Pakistan initially says it will move its own domestic T20 tournament to the United Arab Emirates because of the crisis, but then says it will only postpone matches.
Several northern and western Indian states shut schools and other educational institutions.
US Vice President JD Vance says a potential war between India and Pakistan would be “none of our business.”
India's army says drones have been sighted in 26 locations across many areas in Indian states bordering Pakistan and Indian-controlled Kashmir, including the main city of Srinagar. The drones were tracked and engaged, it adds.
The Group of Seven nations, or G7, urge “maximum restraint” from both India and Pakistan, warning that further military escalation poses a serious threat to regional stability.
May 10 Pakistan says India has fired missiles at air bases inside the country and that retaliatory strikes are underway. The Indian missiles targeted Nur Khan air base in the garrison city of Rawalpindi, near the capital Islamabad, Murid air base in Chakwal city, and Rafiqui air base in the Jhang district of eastern Punjab province, according to the Pakistani army's chief spokesperson.
Pakistan says it has fired missiles at Indian military positions.
Residents in Indian-controlled Kashmir report hearing loud explosions at multiple places in the region, including Srinagar, Jammu, and the garrison town of Udhampur.



How Much Damage Have Israeli Strikes Caused to Iran’s Nuclear Program?

A satellite image shows new vehicle tracks and dirt piles over underground centrifuge facility at the Natanz nuclear facility in Iran after airstrike in Iran in this handout image dated June 15, 2025. (Maxar Technologies/Handout via Reuters)
A satellite image shows new vehicle tracks and dirt piles over underground centrifuge facility at the Natanz nuclear facility in Iran after airstrike in Iran in this handout image dated June 15, 2025. (Maxar Technologies/Handout via Reuters)
TT
20

How Much Damage Have Israeli Strikes Caused to Iran’s Nuclear Program?

A satellite image shows new vehicle tracks and dirt piles over underground centrifuge facility at the Natanz nuclear facility in Iran after airstrike in Iran in this handout image dated June 15, 2025. (Maxar Technologies/Handout via Reuters)
A satellite image shows new vehicle tracks and dirt piles over underground centrifuge facility at the Natanz nuclear facility in Iran after airstrike in Iran in this handout image dated June 15, 2025. (Maxar Technologies/Handout via Reuters)

Israel has carried out wide-ranging military strikes on Iran, hitting sites including some of its most important nuclear facilities.

Below is a summary of what is known about the damage inflicted on Iran's nuclear program, incorporating data from the last quarterly report by the UN nuclear watchdog on May 31.

OVERVIEW

Iran is enriching uranium to up to 60% purity. This could easily be refined further to the roughly 90% which is weapons grade.

The International Atomic Energy Agency, which inspects Iran's nuclear sites including its enrichment plants, says that is of "serious concern" because no other country has enriched to that level without producing nuclear weapons. Western powers say there is no civil justification for enrichment to that level.

Iran denies seeking nuclear weapons. It points to its right to nuclear technology for peaceful purposes, including enrichment, as a party to the nuclear Non-Proliferation Treaty.

Israel, which is not a party to the NPT, is the only country in the Middle East widely believed to have nuclear weapons. Israel does not deny or confirm that.

HEART OF THE PROGRAM: URANIUM ENRICHMENT

Iran had three operating uranium enrichment plants when Israel began its attacks:

* The Fuel Enrichment Plant (FEP) at Natanz (power supply hit)

A vast underground facility designed to house 50,0000 centrifuges, the machines that enrich uranium.

There has long been speculation among military experts about whether Israeli airstrikes could destroy the facility given that it is several floors underground.

There are about 17,000 centrifuges installed there, of which around 13,500 were operating at last count, enriching uranium to up to 5%.

Electricity infrastructure at Natanz was destroyed, IAEA chief Rafael Grossi told the UN Security Council on Friday, specifically an electrical sub-station, the main electric power supply building, emergency power supply and back-up generators.

While there was no indication of a physical attack on the underground hall containing the FEP, "the loss of power ... may have damaged the centrifuges there", he said.

Grossi has cited unspecified "information available to the IAEA". While Iran has provided the agency with some information, the IAEA generally makes extensive use of satellite imagery.

* The Pilot Fuel Enrichment Plant (PFEP) at Natanz (destroyed)

The smallest and, being above-ground, the softest target of the three enrichment plants. Long a research and development center, it used fewer centrifuges than the other plants, often connected in smaller clusters of machines known as cascades.

It did, however, have two interconnected, full-size cascades of up to 164 advanced centrifuges each, enriching uranium to up to 60%. Apart from that, there were only up to 201 centrifuges operating at the PFEP enriching to up to 2%.

Most of the research and development work attributed to the PFEP had recently been moved underground to the FEP, where more than 1,000 of its advanced centrifuges were enriching to up to 5%.

The PFEP was destroyed in the Israeli attack, Grossi said.

* The Fordo Fuel Enrichment Plant (no visible damage)

Iran's most deeply buried enrichment site, dug into a mountain, suffered no visible damage, Grossi reiterated on Monday.

While it has only about 2,000 centrifuges in operation, it produces the vast majority of Iran's uranium enriched to up to 60%, using roughly the same number of centrifuges as the PFEP did, because it feeds uranium enriched to up to 20% into those cascades compared to 5% at the PFEP.

Fordo therefore produced 166.6 kg of uranium enriched to up to 60% in the most recent quarter. According to an IAEA yardstick, that is enough in principle, if enriched further, for just under four nuclear weapons, compared to the PFEP's 19.2 kg, less than half a bomb's worth.

OTHER FACILITIES

Israeli strikes damaged four buildings at the nuclear complex at Isfahan, the IAEA has said, including the Uranium Conversion Facility (UCF) and facilities where work on uranium metal was conducted.

While it has other uses, mastering uranium metal technology is an important step in making the core of a nuclear weapon. If Iran were to try to make a nuclear weapon, it would need to take weapons-grade uranium and turn it into uranium metal.

Uranium conversion is the process by which "yellowcake" uranium is turned into uranium hexafluoride, the feedstock for centrifuges, so that it can be enriched. If the UCF is out of use, Iran will eventually run out of uranium to enrich unless it finds an outside source of uranium hexafluoride.

SCIENTISTS

At least 14 Iranian nuclear scientists have been killed in Israeli attacks since Friday, including in car bombs, two sources said on Sunday.

Israel's armed forces named nine of them on Saturday, saying they "played a central part of the progress toward nuclear weapons" and that "their elimination represents a significant blow to the Iranian regime's ability to acquire weapons of mass destruction". That assertion could not immediately be verified.

Western powers have often said Iran's nuclear advances provide it with an "irreversible knowledge gain", suggesting that while losing experts or facilities may slow progress, the advances are permanent.

URANIUM STOCKPILE

Iran has a large stock of uranium enriched to different levels.

As of May 17, Iran was estimated to have enough uranium enriched to up to 60% for it to make nine nuclear weapons, according to an IAEA yardstick.

At lower enrichment levels it has enough for more bombs, though it would take more effort: enough enriched to up to 20% for two more, and enough enriched to up to 5% for 11 more.

Much of Iran's most highly enriched uranium stockpile is stored at Isfahan under IAEA seal, officials have said. The IAEA does not report where it is stored, nor has it said whether it was affected by the strikes.

OPEN QUESTIONS

* How will Iran respond?

Iranian Deputy Foreign Minister Kazem Gharibabadi told state TV on Saturday Iran would take measures to protect nuclear materials and equipment that would not be notified to the IAEA and it would no longer cooperate with the IAEA as before.

Lawmakers are also preparing a bill that could prompt Iran to pull out of the NPT, following in the footsteps of North Korea, which announced its withdrawal in 2003 and went on to test nuclear weapons.

The IAEA does not know how many centrifuges Iran has outside its enrichment plants. Any further reduction in cooperation with the IAEA could increase speculation that it will or has set up a secret enrichment plant using some of that supply.

Existing centrifuge cascades can also be reconfigured to enrich to a different purity level within a week, officials have said.

* What is the status of the uranium stock?

If Iran can no longer convert, its existing stock of uranium hexafluoride and enriched uranium becomes even more important.

* How bad is the damage?

The IAEA has not yet been able to carry out inspections to assess the damage there in detail.

* Will there be more attacks?

Soon after the attacks started on Friday, US President Donald Trump urged Iran to make a deal with the United States to impose fresh restrictions on its nuclear program "before there is nothing left". Talks scheduled for June 15 were called off.