Charles Taylor invaded the country at Butuo in Nimba County on Christmas Eve 1989 with a force of around 150 men, initiating the First Liberian Civil War. Doe responded by sending two AFL battalions to Nimba in December 1989 – January 1990, under then-Colonel Hezekiah Bowen. The Liberian government forces assumed that most of the Mano and Gio peoples in the Nimba region were supporting the rebels. They thus acted in a very brutal and scorched-earth fashion which quickly alienated the local people. Taylor's support rose rapidly, as the Mano and Gio flocked to his National Patriotic Front of Liberia seeking revenge. Many government soldiers deserted, some to join the NPFL. The inability of the AFL to make any headway was one of the reasons why Doe changed his field commander in the area five times in the first six months of the war.