The highest rank he had achieved during his military career was that of a Lieutenant Colonel .
In 2010 , Abiy eventually decided to leave the military and his post as deputy director of INSA to become a politician .
The highest rank Abiy had achieved during Abiy 's military career was that of a Lieutenant Colonel .
In 2010 , Abiy eventually decided to leave the military and his post as deputy director of INSA to become a politician .