Kammala jumla mai zuwa: An haifi Adan a cikin dangin yahudawa a Kfar Giladi, British Mandatory Palestine; an haife shi da sunan "Eidelson", amma daga baya ya canza shi zuwa "Adan" a matsayin wani ɓangare na tsarin Ibrananci. A cikin 1943, ya shiga cikin Palmach, ƙwararrun ƙwararrun ƙungiyar Haganah da ke aiki a wani ɓangare na al'ummar Yishuv a cikin Falasdinu ta Burtaniya. A lokacin da
A cikin Yaƙin Larabawa da Isra'ila na Farko, Adan ya kasance kwamandan kamfani a cikin bataliya ta 8 na Brigade na Negev, kuma ya halarci Operation Uvda, wanda brigade ya yi nasarar kama sansanin Umm al-Rashrash da ke hannun Jordan - yanzu ana kiransa Eilat - a kudancin kudancin sabuwar kasar. Adan, sa'annan kyaftin ne a cikin sabuwar rundunar tsaron Isra'ila (IDF), an dauki hoton sa yayin da yake daga tutar Ink na Jihar Isra'ila a wurin. Hoton ya zama alama, kuma an kwatanta shi da "Raising the Flag on Iwo Jima", wani hoto mai ban mamaki wanda Amurkawa shida ke dauke da tutar Amurka a kan Dutsen Suribachi a lokacin yakin Iwo Jima a yakin duniya na biyu.