As leaders gather for the annual high-level meeting of the United Nations General Assembly this week, they have no shortage of wars to worry about. The war in Gaza, where a U.N. commission recently found that Israel is committing genocide against Palestinians, will dominate proceedings. That crisis has shaken the U.N., which has been dealing with the Israeli-Palestinian conflict since the 1940s, to its core. Gaza and Ukraine topped the agenda when world leaders met in New York a year ago. That said, a further Russian incursion into NATO airspace—like the recent incidents over Poland and Estonia—could suddenly seize leaders’ attention.