China has sent 120 troops to South Sudan as part of a 700-member U.N. peacekeeping force, deepening its commitment to the troubled East African nation where two Chinese peacekeepers were killed in fighting over the summer.

Once the entire battalion is deployed, they will replace Chinese peacekeepers currently in place, the second battalion to be deployed to South Sudan to protect civilians, U.N. staff and humanitarian workers, conduct patrols and provide security escorts.

President Xi Jinping said last year, China will set up a permanent peacekeeping standby force of 8,000 troops to be deployed whenever necessary.