On October 6, 1973, the Yom Kippur War began when Egypt and Syria launched a surprise military attack on Israel during the Jewish holiday of Yom Kippur. The conflict started with coordinated assaults on Israeli positions in the Sinai Peninsula and the Golan Heights, areas Israel had occupied since the 1967 Six-Day War. The war lasted for nearly three weeks, causing heavy casualties on both sides, with Israel suffering significant losses before eventually gaining the upper hand. More than 2,500 Israeli soldiers and around 8,000 Arab soldiers were killed, with tens of thousands more wounded. The war deeply impacted the geopolitical landscape of the Middle East and led to shifts in Arab-Israeli relations and future peace negotiations.