Alternative Education Center, Odessa, TX, celebrated the International Day of Living Together in Peace on May 16, 2022. Students studied the number of United Nations peacemaking missions from 1947 to 2021 and used regression to describe the trend mathematically. As their final exam review, students solved math problems by completing a math peace poster. They also completed a peace word puzzle for fun. They then wrote an essay on how the Russia-Ukraine war affected the global sustainable development goal of peace, justice, and strong institutions and what should be done to help end the war. Through the activities, students learned the purpose of the UN peacemaking missions, which is to prevent future conflicts between countries and support global stabilization and rebuilding efforts. They realized that peacemaking efforts to stop the Russia-Ukraine war unfortunately failed, but the world's prayers and wishes to end the war continue.