Dee ihe na-aga n'ihu maka paragraf a - Na 1 Machị 1918, a na-ebufe Tadija Sondermajer na ndị agha French nke kachasị elu (GC 12) 'Les Cigognes' ('The Storks') ndị otu ụgbọ elu kachasị mma na France, onye isi ndị France a ma ama bụ Georges Guynemer nyere ya iwu, na mgbe Guynemer nwụsịrị, site na onye isi ka ukwuu <unk> onye akụkọ ifo Rene Fonck; dị ka otu n'ime ndị ọkwọ ụgbọ elu 60 kachasị elu, a họọrọ Tadija ka ọ sonyere ndị otu na-ahụ maka ọrụ ọgụ kachasị ike na Western n'ihu n'oge agha nke Marne
Ọ dị mma. Site n'April 15 ruo May 21, ndị iro nke ìgwè ya bụ "Flying Circus" nke ndị agha Fokker mejupụtara, nke Manfred von Richthofen, onye Germany a ma ama na-efe efe, nke a maara nke ọma dị ka Red Baron. N'oge otu ọrụ n'elu akara ndị iro, ka ọ na-alọghachi n'isi ụlọ ọrụ ya na egbe igwe na-enweghị ihe ọ bụla, ndị agha German atọ wakporo Sondermajer. Ọ zọpụtara onwe ya site n'ịgba egwu na-efe efe, nke mere ka onye iro ghara igbu ya. Mgbe ọ na-alọta site na ọgụ nke abụọ na May 21 ya SPAD XIII gbara ọkụ mgbe a gbagburu ya, n'ụzọ ọrụ ebube ọ nwere ike ịbanye na Flanders, Sondermajer lanarịrị ihe mberede nke ụgbọelu ya ma ọ bụ nnukwu ọkụ na mmerụ ụkwụ. Mgbe ọgwụgwọ na demobilization gasịrị, Sondermajer debara aha ya n'ụlọ akwụkwọ nke Aeronautics na Mechanical Construction na Paris () ebe ọ natara akara ugo mmụta na injinia ụgbọelu na 1921. N'afọ 1923 ọ hapụrụ ọrụ ọrụ ka ọ bụrụ onye ọrụ nchekwa.