Resolution 338 is a United Nations Security Council resolution passed on October 22, 1973, calling for a ceasefire in the ongoing Yom Kippur War between Israel and a coalition of Arab states led by Egypt and Syria. This resolution reaffirmed the principles set forth in Resolution 242, emphasizing the need for negotiations to establish a just and lasting peace in the Middle East. It marked a significant step toward de-escalation in the region following the conflict and laid the groundwork for future peace talks.