Rubuta ci gaba don wannan sakin layi - Daga 12 ga Satumba 1942 zuwa Disamba 1945 Adair shi ne Janar Janar (GOC) na Rundunar Tsaro ta Tsaro, ya maye gurbin Oliver Leese, wanda ya sami ci gaba zuwa kanal a ranar 30 ga Yuni, 1943, yayin da yake aiki a matsayin mai aikatawa sannan kuma babban janar na wucin gadi daga ranar 21 ga Satumba, 1942. Bayan horar da rukunin a duk faɗin Burtaniya na tsawon watanni 21, Rundunar Tsaro ta Tsaro ta isa Normandy a matsayin wani ɓangare na Operation Overlord a ranar 28 ga Yuni 1944 a matsayin wani ɓangare na Lieutenant General Sir Richard O'Connor's VIII Corps, da farko ya ga aiki a lokacin Operation Goodwood a watan Yuli, sannan kuma a cikin Operation Bluecoat a watan Yuli / Agusta. Bayan nasarar da Allied suka yi a Normandy sun ci gaba zuwa arewacin Faransa da Belgium
a matsayin wani ɓangare na Lieutenant Janar Sir Brian Horrocks 'XXX Corps. Rukunin ya 'yantar da Brussels, bayan ya ci gaba da ci gaba daga Douai, a cikin sa'o'i 14 kawai. Ƙungiyar ta dauki matsayi na farko a cikin ci gaba a Operation Market Garden a watan Satumba. An ajiye shi a lokacin yakin Bulge a watan Disamba, an yi shi ne a yakin Reichswald (Operation Veritable) a watan Fabrairun da Maris 1945. Bayan ya ci gaba ta hanyar Jamus da kuma Jamusanci ya mika wuya a watan Mayu na shekarar 1945, Rundunar Tsaro ta Tsaro ta kasance a matsayin wani ɓangare na sojojin mamaye, amma a ranar 12 ga Yuni, 1945, an canza shi zuwa wani bangare na soja, Rundunar Tsaro.