At a 2024 campaign rally in Iowa, Donald Trump, the leading candidate for the Republican presidential nomination, conveyed deep worries about the imminent threat of World War III and the potential for global devastation due to the destructive capabilities of modern weaponry. Trump linked his presidency to potential conflict prevention and criticized Joe Biden's foreign policies, specifically in handling the Russia-Ukraine war. He also maintained his controversial stance on condemning undocumented migrants, drawing comparisons to Adolf Hitler's call to eliminate Jews before the Holocaust, prompting discussions about the historical context and implications of such rhetoric.