The Trump administration will regret looking for simple solutions to Eastern Europe's territorial disputes.

“We don’t have a dog in that fight.” James Baker, U.S. secretary of state, June 1991, speaking of the impending dissolution of Yugoslavia.

“We don’t exclude territorial adjustments. … We think they’ve got to solve it for themselves.” John Bolton, U.S. national security advisor, August 2018, speaking of talks on territorial swaps between Serbia and Kosovo.

See at: https://foreignpolicy.com/2018/09/04/how-to-restart-war-in-the-balkans/