HMS Roberts was a Royal Navy Roberts-class monitor of the Second World War. She was the second monitor to be named after Field Marshal Frederick Roberts, 1st Earl Roberts.
HMS Roberts (F40)
HMS Roberts shelling German shore batteries, 6 June 1944. HMS Frobisher is in the background.
A monitor is a relatively small warship that is neither fast nor strongly armored but carries disproportionately large guns. They were used by some navies from the 1860s, during the First World War and with limited use in the Second World War.
USS Monitor, the first monitor (1861)
HMS Marshal Ney used a surplus 15-inch gun battleship turret.
Officers of a Union monitor, probably USS Sangamon, photographed during the American Civil War
Huáscar anchored in the harbour at Talcahuano