In Ethiopia, Prime Minister Abiy Ahmed has acknowledged for the first time Eritrean soldiers crossed into the northern Tigray region and were involved in the bloody conflict that erupted in November. Harrowing witness accounts have emerged of Eritrean soldiers killing Tigrayan men and boys and committing acts of sexual violence, including against displaced people. The U.N. has said multiple parties may have committed war crimes and crimes against humanity since the start of the conflict.