evidence: "American presidents have scant control over foreign decisions about war and peace unless they show their willingness to commit American power," said Richard Betts, a Columbia University professor emeritus of war and peace studies and of international and public affairs. During the Trump administration, there were no new major overseas wars or invasions. But during his presidency, there were still conflicts within Israel and between Russia and Ukraine. For example, Russia was intervening militarily in the Ukraine’s Donbas region throughout Trump’s administration. Trump also supported weakening NATO, reducing expectations among allies that the U.S. would intervene militarily if they were attacked. Although there’s no way to know how the war in Israel would have played out, experts said the prospect of the Abraham Accords — the peace effort between Israel and Arab nations led by the Trump administration — likely helped drive Hamas’ attack. "There’s no doubt in my mind that the prospect of the Abraham Accords being embraced by countries such as Saudi Arabia was one of the main causes of the Oct. 7 attack," Ambassador Martin Kimani, the executive director of NYU’s Center on International Cooperation said.