Victory (from Latin victoria) is a term, originally applied to warfare, given to success achieved in personal combat, after military operations in general or, by extension, in any competition. Success in a military campaign is considered a strategic victory, while the success in a military engagement is a tactical victory.
Victory Day (also shortened as V-Day) is a common name of many different public holidays in various countries to commemorate victories in important battles or wars in the countries' history.
Victory over Japan Day (also known as Victory in the Pacific Day, V-J Day, or V-P Day) is a name chosen for the day on which Japan surrendered, effectively ending World War II, and subsequent anniversaries of that event. The term has been applied to both of the days on which the initial announcement of Japan's surrender was made – to the afternoon of August 15, 1945, in Japan, and, because of time zone differences, to August 14, 1945 (when it was announced in the United States and the rest of the Americas and Eastern Pacific Islands) – as well as to September 2, 1945, when the signing of the surrender document occurred, officially ending World War II.