Major General John Porter Lucas was a senior officer of the United States Army who saw service in World War I and World War II. He is most remembered for being the commander of VI Corps during the Battle of Anzio in early 1944 the Italian campaign of World War II.

The Battle of Anzio was a battle of the Italian Campaign of World War II that took place from January 22, 1944. The battle began with the Allied amphibious landing known as Operation Shingle, and ended on June 4, 1944 with the liberation of Rome. The operation was opposed by German and by Italian Repubblica Sociale Italiana (RSI) forces in the area of Anzio and Nettuno.