Complex sentence: During the Israeli War of Independence, Cohen defended Jerusalem and Gush Etzion, where he fought with Etzel for the Old City of Jerusalem, and he accompanied convoys of soldiers to Jerusalem and Gush Etzion, and also fought to defend the Gush.
Split into simpler sentences: During the Israeli War of Independence, Cohen defended Jerusalem and Gush Etzion, where he fought with Etzel for the Old City of Jerusalem. He accompanied convoys of soldiers to Jerusalem and Gush Etzion, and also fought to defend the Gush.