[6][7] In 1939 at the end of the Arab Revolt, Carmi returned to Givat HaShlosha and married Tonka, promising to stay on the farm and grow oranges and melons.
Carmi joined the Posh (Haganah unit), whose goal was to 'prevent the British from arresting the underground leaders and messing up covert training grounds.
[9] When World War II broke out Carmi joined the Buffs (Royal East Kent Regiment) under orders from Haganah and became the rank of sergeant.
[14] Around October 1944 Carmi travelled to Alexandria and then directly to Italy where he smuggled two Haganah operatives as British soldiers, their mission was to determine the truthfulness of the gas chamber rumors.
[21] Treviso was considered the perfect location because the SS stayed throughout the war and the local train station was used in connection with the deportation of Italian Jews, and the area was also full of refugees and recovering Wehrmacht soldiers.
[26] Carmi then organised a group of fellow Jewish Brigade officers to track and kill those whose guilt was "definitively established" by evidence.