In a speech in Philadelphia, Donald Trump outlined his national security vision: "Peace through strength."
He also said Wednesday he would end the defense sequester, the mandatory cap on military spending that was part of a larger budget deal that took effect in 2013.
WATCH: Here's Trump announcing his plan to end the sequester. He said he would fund it by cutting government waste, including military bureaucracy.
WATCH: Trump said expanding the size of the military is key. He claimed the Navy was the smallest it has been since 1915, and he would create jobs by increasing the number of ships and fighter jets.
A "state-of-the-art missile defense system" is also part of the plan.
Trump on Iran: "Essentially, they're going to be taking over Iraq very quickly."— Nick Corasaniti (@NYTnickc) August 5, 2016
He also said Iran would take over Iraq. It's not clear how he came to that conclusion.
We will have aggression like you've never seen before... Our adversaries are chomping at the bit.
Trump also criticized Hillary Clinton for being "trigger-happy" and intervening in too many conflicts, and warned of heightened aggression toward the United States if he was not elected.
WATCH: He did not specify details of his plan to demand a plan to defeat ISIS within 30 days of office, a claim which Clinton roundly criticized.