World War II: During the Anzio campaign, the 1st Ranger Battalion (Darby's Rangers) is destroyed behind enemy lines in a heavily outnumbered encounter at Battle of Cisterna, Italy.

The Battle of Anzio was a battle of the Italian Campaign of World War II that commenced 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.

The 1st Ranger Battalion, currently based at Hunter Army Airfield in Savannah, Georgia, United States, is the first of three ranger battalions belonging to the United States Army's 75th Ranger Regiment.

The Battle of Cisterna took place during World War II, on 30 January–2 February 1944, near Cisterna, Italy, as part of the Battle of Anzio, part of the Italian Campaign. The battle was a clear German victory which also had repercussions on the employment of U.S. Army Rangers that went beyond the immediate tactical and strategic results of the battle.