Robinson accepted the mission without hesitation. His force landed undetected early in the morning of 26 February, destroyed two small artillery pieces and made fast progress towards the main battery before being pinned down by Turkish snipers in the mid-afternoon. The white naval uniforms of the sailors proved an easy target for the Turks and casualties mounted as Turkish reinforcements were brought up to cut off the raiding party. Instead of withdrawing in the face of this threat, Robinson marched his men through gullies and came out close to a small rise behind the main battery. The open ground of the rise was covered by several Turkish snipers, but realising the importance of removing the artillery overlooking the sea passage, Robinson delegated command of the party to a junior officer and made the climb alone, dodging bullets in his white uniform until he crested the rise unhurt, emerging a few minutes later and starting back apparently unconcerned by the increasingly heavy gunfire directed at him. He was said to be "strolling around ... under heavy rifle fire ... like a sparrow enjoying a bath from a garden hose". The battery had been ungarrisoned, and Robinson was able to lay fuses which destroyed the large 9.4" main gun and two anti-aircraft emplacements within the position. Withdrawing in good order, Robinson evaded the Turkish reinforcements and then directed gunfire from the fleet onto their positions, including a force garrisoning an ancient tomb, inflicting heavy casualties. An immediate recommendation for the Victoria Cross was put forward by Admiral de Robeck who had observed proceedings from offshore.