The announcement came hours after the Saudi crown prince announced he would increase his investments in the U.S. to nearly $1 trillion.

Donald Trump said Tuesday the U.S. and Saudi Arabia have entered into a security agreement that will ease weapons transfers and elevate the relationship between the two countries.

Under the agreement, Saudi Arabia would be designated a “major non-NATO ally,” a formal relationship that deepens defense cooperation but does not include a security guarantee. The Kingdom would join 19 other countries in that category, a list that includes Israel, Jordan, Kuwait and Qatar.

The announcement followed the crown prince’s announcement that he would increase his nation’s investments in the U.S. from about $600 billion to nearly $1 trillion — and after Trump dismissed a question about the 2018 killing of a Washington Post columnist in which Mohammed was implicated by the CIA.