The US focus at next week's annual UN gathering of world leaders will include ending the scourge of war and revitalizing an overstretched aid system, US envoy Linda Thomas-Greenfield said on Tuesday.
She specifically mentioned Russia's war in Ukraine, the conflict in Sudan, instability in Haiti, the war between Israel and Palestinian militants Hamas in the Gaza Strip and violence in the Democratic Republic of Congo and Myanmar.
"As we work to silence the guns, we must also redouble our efforts to address humanitarian crises," Thomas-Greenfield told reporters ahead of the high-level meeting of the UN General Assembly.
"Aid workers put their own lives at risk to save the lives of others. But what we hear time and time again is that humanitarians don't have the resources, they don't have the protection, they don't have the access they need to do their jobs," she said.
More than 130 heads of state or government are due to travel to New York to address the 193-member General Assembly, a week after a second assassination attempt on US presidential candidate Donald Trump.
"The situation that happened with President Trump is unacceptable," Thomas-Greenfield said. "We have a responsibility to do everything possible to protect the heads of state who are coming here, but also protect their own political leaders."
"New York City has police everywhere, diplomatic security is supporting Secret Service to also provide security for all the heads of state who will be here," she said, adding that there had never been a security incident related to a head of state at the UN.