 A good number of other anti-ship missiles use infrared homing to follow the heat that is emitted by a ship; it is also possible for anti-ship missiles to be guided by radio command all the way.The first anti-ship missiles, which were developed and built by Nazi Germany, used radio command guidance.These saw some success in the Mediterranean Theater in 1943–44, sinking or heavily damaging at least 31 ships with the Henschel Hs 293 and more than seven with the "Fritz X", such as the Italian battleship "Roma" or the cruiser .