On October 28th each year, Greece celebrates Ohi Day to commemorate Prime Minister Ioannis Metaxas' rejection of an ultimatum from Italian dictator Benito Mussolini in 1940. The ultimatum demanded that Greece allow Axis forces to enter Greek territory, but Metaxas refused with the single word "No." In response, Italian troops stationed in Albania attacked Greece, marking Greece's entry into World War II. Since 1942, October 28th has been celebrated annually in Greece and by Greek communities worldwide to honor Metaxas' defiant rejection and Greece's resistance against Axis forces.