Armenia and Azerbaijan have committed to a lasting peace after decades of conflict, U.S. President Donald Trump said Friday as he hosted the leaders of the South Caucasus rivals at a White House signing event.

Armenian Prime Minister Nikol Pashinyan and longtime Azerbaijani President Ilham Aliyev said Trump¡¯s mediation should earn him a Nobel Peace Prize ¡ª an award the U.S. leader has been vocal about seeking.

The two former Soviet republics ¡°are committing to stop all fighting forever, open up commerce, travel and diplomatic relations and respect each other¡¯s sovereignty and territorial integrity,¡± Trump said at the event.