Complex sentence: The Fortress of Mimoyecques is the modern name for a Second World War bunker complex built by the forces of Nazi Germany between 1943 and 1944 to house a battery of V-3 cannons aimed at London, situated away.
Split into simpler sentences: The Fortress of Mimoyecques is the modern name for a Second World War underground military complex built by the forces of Nazi Germany between 1943 and 1944. It was intended to house a battery of V-3 cannons aimed at London, situated away.