Chinese President Xi Jinping has called for extensive cooperation with Washington to avoid what he described as the “Thucydides trap” that could put the United States and China on a military collision course, according to The Guardian.

At the start of his summit meeting with Donald Trump at the White House, Xi laid out terms for a mutual understanding that he said could avoid military conflict between the two competing superpowers.

The proposals for lessening tensions come amid a period of intense competition between the two countries over artificial intelligence and trade, The Guardian reported.

The phrase “Thucydides trap” refers to the idea that established and rising powers can be drawn toward conflict, and Xi framed his terms around avoiding that outcome between the world’s two largest economies.

The Guardian’s coverage indicated the summit was being followed closely, with the outlet running live updates as the meeting between the two leaders unfolded.

The available reporting focused on Xi’s opening remarks and his call for cooperation; further details of any agreements reached at the summit were not specified in the source material.