Language in the "peace deal" will give the U.S. exclusive rights to develop a key transit route that will be named after Trump.

Iran threatened on Saturday to block a corridor planned in the Caucasus under a regional deal sponsored by U.S. President Donald Trump, Iranian media reported, raising a new question mark over a peace plan hailed as a strategically important shift.

President Donald Trump hosted the leaders of Armenia and Azerbaijan at the White House on Friday, where they finalized a peace agreement that would grant the United States exclusive development access to a critical transit corridor in the South Caucasus,