Vance is set to deliver the commencement address at the United States Air Force Academy's 68th graduation ceremony in Colorado this morning.The vice president, who is a Marine Corps veteran, addressed Naval Academy cadets at their commencement last year. In those remarks, he touted a "generational shift" in U.S. foreign policy, saying that under the Trump administration, the U.S. was moving away from "nation-building and meddling in foreign countries' affairs."Vance also criticized past efforts to build democracies in the Middle East rather focusing on rising rival powers like China.“Our government took its eye off the ball of great power competition and preparing to take on a peer adversary, and instead, we devoted ourselves to sprawling amorphous tasks like searching for new terrorists to take out while building up far-away regimes,” Vance said. “Now I want to be clear, the Trump administration has reversed course — no more undefined missions, no more open-ended conflicts. We’re returning to a strategy grounded in realism and protecting our core national interests.”While Trump has touted his efforts to end several conflicts, he also joined Israel in the war against Iran, which he has said is aimed at preventing that country from acquiring a nuclear weapon.