The Ethiopian government has declared a six-month, nationwide state of emergency, as it says it’s preparing to defend the capital, Addis Ababa, from Tigrayan rebel forces that threatened the city would be overrun within “months if not weeks.” The state of emergency allows the government to impose curfews and roadblocks and for the Ethiopian military to take over certain areas of the country. The government has also called on citizens to take up arms against rebel fighters. This comes as the U.N. has condemned human rights atrocities uncovered by a joint investigation into the war in the Tigray region. The U.N. said all parties involved in the conflict, including forces from Eritrea, had committed violations of international human rights, some of which could amount to war crimes and crimes against humanity. This includes extrajudicial killings, torture, sexual and gender-based violence. The U.N. also accused Ethiopia’s government of attempting to limit the investigation.