He was still in primary school when the Second World War broke out. Seeing France occupied, he was driven by his patriotism to enter the Resistance and fight the German troops immediately he turned sixteen. Early 1945, while fighting at the Italian border, he was injured and commended.
Having become a professional soldier, Marcel Dupuis volunteered to go and serve in Indochina, and when the war ended, he successively fought in North Africa and Chad.
Having grown from the ranks, he retired from the army as a Marine infantry commander.
He immediately got seriously involved in associative activities, successively becoming the:
Lot-et-Garonne General President for association nationale des croix de guerre et valeur militaire, national deputy president for under-twenty servicemen, national secretary of the French youth war cross holders’ centuria, Lot-et-Garonne UDAC deputy president, deputy delegate general for Souvenir Français and Lot-et-Garonne UF federal president and, in this capacity, organiser, in May 1991, of the Agen 66th national congress, and he was subsequently approved as the national technical adviser of the federation.
Elected UF national administrator in 1994 (Bourg-en-Bresse Congress), he became the national deputy president in 1998, and then the national deputy general president from 2001 to 2003, after which he abandoned this responsibility to devote more of his time to his family life and wife.
Marcel Dupuis equally served as the deputy Mayor for Estillac from 1983 to 2001. He died on May 21, 2009.
This great volunteer serviceman was Knight of the Legion of Honour, holder of the military medal, officer of the National Order of Merit, holder of the Second World War cross, volunteer servicemen cross, servicemen cross and several other military and civilian awards. In addition, the extremely rare UF Gold Medal came to be the icing on the cake of his outstanding qualities and absolute devotedness with regard to warfare.