"The U.S. has 69 treaties with other countries where we would have to defend them and their borders," the GOP nominee tweeted Saturday."How nice, but what do we get? NOT ENOUGH."

The tweet is a continuation of his complaint that other countries are taking advantage of the U.S. military. He has previously promised to require countries that rely on American protection to pay for the service and pledged to renegotiate the NATO alliance.

"We are not being reimbursed for our protection of many of the countries … including Saudi Arabia," he said in March.