In 1971 Major Peter was wounded while commanding a rifle company. He refused evacuation and continued fighting until surrender.[3]
Peter rose through the army ranks to become a Brigadier in April 1989 after which he commanded 124 Brigade in Sialkot Cantonment.[4] In April 1993 he became the first Christian promoted to the rank of Major General.[5] Peter commanded the 40th Strike Division in Okara Cantonment.
In 1999 Major General Julian Peter was Director General Logistics based in Rawalpindi. He is a recipient of the Hilal-e-Imtiaz (Military). Peter served as the General Officer Commanding of a Division and as general staff officer at Army Headquarters until his retirement in 2004. In 2004 he was a director of Fauji Fertilizer Bin Qasim Limited.[6]
In December 2011 he was the chief guest at an investiture ceremony at St Mary's Cambridge School.[2]