 -- Donald Trump said today that American citizens and their safety will be the main priority when it comes to his foreign policy decisions.

"America first will be the major and overriding theme" of his foreign policy should he become president, Trump said at a speech in Washington, D.C., today.

"It's time to shake the rust off of America's foreign policy," Trump said, adding that his policy will be "one that replaces randomness with purpose."

Trump criticized President Obama as well as Hillary Clinton's work as secretary of state, saying that both had different roles in helping ISIS grow.

"If President Obama's goal was to weaken America, he could not have done a better job," Trump said.

He went on to blast Clinton's work in the wake of the the attack on the American diplomatic compound in Benghazi, Libya.

He touched on a wide rage of subjects, including deals that he hopes to make with Russia and China.

"If we can't make a deal under my administration, a deal that's great, not good, great for America, but also good for Russia, then we will quickly walk from the table. It's as simple as that," he said.

Trump said that he would be open to using American force -- and soldiers -- when necessary.

"I will not hesitate to deploy military force when there is no alternative. But if America fights, it must only fight to win. I will never send our finest into battle unless necessary, and I mean absolutely necessary, and will only do so if we have a plan for victory with a capital 'V,'" he said.

"I am the only person running for the presidency who understands this and this is a serious problem. I am the only one, believe me, I know them all, I am the only one that knows how to fix it," he said.

Reporters in the room noted that there were teleprompters present, which is a rarity at Trump speeches. On at least two occasions on the campaign trail, Trump has actually criticized presidential candidates who use teleprompters. The real estate mogul has used teleprompters at his other major policy speech, at the American Israel Public Affairs Committee conference.