On 10 March 1942, the Indian soldiers at Christmas Island mutinied, allowing the Japanese forces to land unopposed at the Battle of Christmas Island. This was followed by a mutiny in the Ceylon Garrison Artillery in the Cocos Islands. However, the Cocos Islands Mutiny failed after it was quickly put down by the Ceylon Light Infantry. Sri Lankans in Singapore and Malaya formed the 'Lanka Regiment' of the Indian National Army. An abortive plan was made to land these troops in Sri Lanka by submarine.