This development dramatically changed the character of the military in Liberia." (Samuel Doe was among this group.) Amos Sawyer also comments that "recruitment of such individuals for the military was part of Tolbert's efforts to replace aging, illiterate soldiers with younger, literate men who were capable of absorbing technical and professional training." The AFL became involved in politics when seventeen soldiers launched a coup on April 12, 1980. The group was made up of Master Sergeant Samuel Doe, two staff sergeants, four sergeants, eight corporals, and two privates. They found President Tolbert sleeping in his office in the Executive Mansion and there they killed him. While then-Sergeant Thomas Quiwonkpa led the plotters, it was the group led by Samuel Doe that found Tolbert in his office, and it was Doe, as a master sergeant the highest ranking of the group, who went on the radio the next day to announce the overthrow of the long-entrenched True Whig Party government. Doe became Head of State and co-chair of the new People's Redemption Council government. Quiwonkpa became commander of the army and the other co-chair of the PRC. (In the aftermath of the coup, the title of LNG Brigade commanding general was confusingly changed to commanding general of the AFL, reporting to the chief of staff, and it was this position that Quiwonkpa inherited.) Henry Dubar (who had helped recruit Doe personally years before) was promoted in one leap from captain to lieutenant general as Chief of Staff. From 1980 onward, Doe's systematic promotion of ethnic Krahn to sensitive posts in the government and military, began to drive deepening divisions within the AFL, among others with Quiwonkpa's Gio tribe, and to hamper morale. Military discipline was an early casualty of the coup. The revolt had been an enlisted men's affair, and one of the first instructions broadcast over the radio had ordered soldiers not to obey their officers. Over four years later, according to observers, the reluctance of most officers to impose discipline had combined with the unwillingness of more than a few enlisted men to accept it." The launch of Doe's coup meant that Major William Jarbo, another soldier with political ambitions who was said to have excellent connections to U.S. security officials, had had his takeover plans forestalled. He tried to escape abroad but was hunted down and killed by the new government. The junta started to split in 1983, with Doe telling Quiwonkpa that he was planning to move Quiwonkpa from command of the army to a position as secretary-general of the People's Redemption Council.