German Field Fortifications 1939-45 (Fortress)

Gordon L Rottman (February 24, 1947) entered the US Army in 1967, volunteered for Special Forces and completed training as a weapons specialist. He served in the 5th Special Forces Group in Vietnam in 1969-70 and subsequently in airborne infantry, long-range patrol and intelligence assignments until retiring after 26 years. He was a Special Operations Forces scenario writer at the Joint Readiness Training Center for 12 years and is now a freelance writer, living in Texas. He began writing military history books in 1984 and is currently a full-time author. He has written 50 books for Osprey. Source: [Vietnam Infantry Tactics](