Occasional Paper 133: Operation C – The Indian Ocean showdown between British and Japanese naval might, 4 – 9 April 1942. A.N. Other · Apr 1, 2022 · Print This Page You must be a logged-in member to view this post. If you recently purchased a membership it can take up to 5 days to be activated, as our volunteers only work on Tuesdays and Thursdays. If you are not a member yet or your membership just expired you can Join Now by purchasing a new membership from the shop.