The official signing of the peace agreement took place earlier Friday at the State Department and was witnessed by Secretary of State Marco Rubio and Senior Adviser for Africa Massad Boulos, whom Trump has largely credited with bringing about the deal.

The agreement between the neighboring countries mandates Rwandan disengagement of armed forces, disarmament and the return of displaced people, but critics say it threatens Congolese sovereignty.

It’s one of several attempts to end the deadly conflict in the troubled eastern DRC. Will it work where others failed?