Task: Question Generation
Input (English): The Crimean campaign opened in September 1854. 360 ships sailed in seven columns, each steamer towing two sailing ships.:422 Anchoring on 13 September in the bay of Eupatoria, the town surrendered and 500 Marines landed to occupy it. This town and bay would provide a fall back position in case of disaster.:201 The ships then sailed east to make the landing of the allied expeditionary force on the sandy beaches of Calamita Bay on the south west coast of the Crimean Peninsula. The landing surprised the Russians, as they had been expecting a landing at Katcha; the last minute change proving that Russia had known the original battle plan. There was no sign of the enemy and the men were all landed on 14 September. It took another four days to land all the stores, equipment, horses and artillery.
Output (English): How many Marines cause Eupatoria to surrender?