Ukrainian and U.S. delegations discussed on Sunday proposals to protect energy facilities and critical infrastructure, Ukraine’s defense minister said, part of a diplomatic push by President Donald Trump to end three years of war.

The meeting in Saudi Arabia, which precedes talks on Monday between the U.S. and Russian delegations, came as U.S. special envoy Steve Witkoff expressed optimism about the chances for ending Europe’s deadliest conflict since World War Two.

“I feel…