The Flag is a watercolor painting executed in 1918 by Georgia O'Keeffe that represents her anxiety about her brother being sent to fight in Europe during World War I. The war was particularly controversial and dangerous because of its use of new modern weapons and tactics, like the machine gun, mustard gas, naval mines and torpedoes, high-powered artillery guns, and combat aircraft. The painting was first publicly displayed in 1968.[1] It is in the collection of the Milwaukee Art Museum.[2][1]