Sierra Leone vs. Liberia

Sierra Leone opposes Guinean troops' continued occupation of Yenga, a small village on the Makona River that serves as a border with Guinea; Guinea's forces came to Yenga in the mid-1990s to help the Sierra Leonean military to suppress rebels and to secure their common border but have remained there even after both countries signed a 2005 agreement acknowledging that Yenga belonged to Sierra Leone; in 2012, the two sides signed a declaration to demilitarize the area

as the UN Mission in Liberia (UNMIL) continues to drawdown prior to the 1 March 2018 closure date, the peacekeeping force is being reduced to 434 soldiers and two police units; some Liberian refugees still remain in Guinea, Cote d'Ivoire, Sierra Leone, and Ghana; Liberia shelters 8,804 Ivoirian refugees, as of 2019