His doctoral thesis, in 1992, was on American military justice and the law of war: A case study of military law in Vietnam.
[7] Before his academic career, Solis served two tours of duty during the Vietnam War in the United States Marine Corps.
[8] He is a former military judge advocate and Marine prosecutor, who retired as a lieutenant colonel (O-5).
[9][10] Solis authored Marines and Military Law in Vietnam, as well as ones about war-crimes including the Son Thang massacre in Son Thang: An American War Crime and The Law of Armed Conflict: International Humanitarian Law in War (Cambridge University Press 2010).
Solis was the recurrent expert studio commentator during the Sky News (UK) daily coverage of the O.J.