He was arrested by the British ten years later in 1939 (when the
Haganah was outlawed), but released after two years in February
1941, as part of
Haganah cooperation with the British during
World War II.
Dayan was assigned to a small
Australian-Palmach-Arab reconnaissance task force, formed in preparation for the
Allied invasion of Syria and Lebanon and attached to the
Australian 7th Division. Using his home kibbutz of
Hanita as a forward base, the unit frequently infiltrated
Vichy French Lebanon, wearing traditional Arab dress, on covert surveillance missions.
On
June 7, the night before the invasion, the unit crossed the border and secured two bridges over the
Litani River. When they were not relieved as expected, at 04:00 on
June 8, the unit perceived that it was exposed to possible attack and — on its own initiative — assaulted a nearby Vichy police station, capturing it in a firefight. A few hours later, as Dayan was using
binoculars they were struck by a French bullet, propelling metal and glass fragments into his left eye and causing severe damage to it. Six hours passed before he could be evacuated and Dayan lost the eye. In addition, the damage to the eye socket was such that Dayan could not be fitted with an
glass eye. He reluctantly adopted the black
eyepatch that became his trademark. On the recommendation of an Australian officer, he received the
Distinguished Service Order, one of the
British Commonwealth's highest military honours.
However, in the years immediately following, the disability caused him some psychological pain. Dayan wrote in his biography: "I reflected with considerable misgivings on my future as a cripple without a skill, trade, or profession to provide for my family." He added that he was "ready to make any effort and stand any suffering, if only I could get rid of my black eye patch. The attention it drew was intolerable to me. I preferred to shut myself up at home, doing anything, rather than encounter the reactions of people wherever I went."