The british officer lawrence of arabia was a key player in which major front of the war

He was a key player in the Sinai and Palestine Campaign

This was a campaign in the middle east in World War 1 against the Ottomans in which various Arab people united to rid themselves of Ottoman rule. He worked closely with Emir Faisal in that region and it culminated all in the capture of Damascus in 1918. After the war, he went back to Britain and worked in the foreign office.