Donald Trump picked retired General Keith Kellogg as his special envoy for Ukraine and Russia, choosing a longtime adviser who’s supported the president-elect’s aims to end the war swiftly, including by potentially cutting off military aid to Kyiv.

WEST PALM BEACH, Fla. (AP) — President-elect Donald Trump said Wednesday that he has chosen Keith Kellogg, a highly decorated retired three-star general, to serve as his special envoy for Ukraine and Russia.

The retired Army general, who served during Trump’s first term, would be central to one of Trump’s most ambitious campaign promises: ending the war between Ukraine and Russia.