Rep. Seth Moulton (D-Mass.) may not have decided yet whether to run for president, but he sounded like a candidate-in-waiting on Tuesday while arguing the Democrats need to make national security a central part of their platform in the presidential election.

A Marine Corps veteran who deployed to Iraq four times, Moulton argued the United States needs to update existing alliances, build new ones, and establish clear strategic goals in Syria, Afghanistan, and elsewhere during a speech Tuesday at the left-leaning Brookings Institution think tank in Washington D.C.