WASHINGTON, D.C. — The United States on Wednesday announced a landmark deal with Saudi Arabia that would establish a civilian nuclear program in the Gulf country, with Washington insisting the agreement includes non-proliferation safeguards. The move comes as the United States under President Donald Trump fights a war with Iran that began in large part over concerns with Tehran's nuclear program — an issue that remains a key point of contention during now-stalled peace talks.Two agreements — one on "peaceful nuclear cooperation" and another on "bilateral safeguards" — were signed by US Energy Secretary Chris Wright and his Saudi counterpart Prince Abdulaziz bin…