Armenian Prime Minister Nikol Pashinyan and Azerbaijani President Ilham Aliyev will meet with U.S. President Donald Trump at the White House on Friday as the bitter rivals work towards a peace deal to resolve nearly four decades of conflict.

Donald Trump is hosting the leaders of Armenia and Azerbaijan in Washington this week for a summit which could advance a much-anticipated peace agreement between the two. The meeting would send a strong signal to Moscow regarding the two countries' commitment to finding a solution without Russia.

President Donald Trump is hoping to add another peace deal to his accomplishments, this time settling a decadeslong dispute between former Soviet states Armenia and Azerbaijan. Armenian Prime Minister Nikol Pashinyan and Azerbaijani President Ilham Aliyev will speak with Trump in Washington,