Vice President JD Vance told graduates at the United States Naval Academy on Friday that they are embarking on a mission in a "new and very dangerous era for our country" as adversaries such as China and Russia are "determined to beat us in every single domain." 

Speaking in Annapolis, Vance said the Trump administration has "reversed course" in U.S. foreign policy as there will be "no more undefined missions" and "no more open-ended conflicts." 

"We’re turning to a strategy grounded in realism and protecting our core national interests. Now, this doesn’t mean that we ignore threats. But it means that we approach them with discipline and that when we send you to war, we do it with a very specific set of goals in mind," Vance said. 

"In the wake of the Cold War, America enjoyed a mostly unchallenged command of the commons -- airspace, sea, space, and cyberspace. But the era of uncontested U.S. dominance is over. Today we face serious threats in China, Russia, and other nations determined to beat us in every single domain," he added.