Complex sentence: When the war came to a close, "Norfolk" departed Plymouth for a much needed refit in Malta, which was then followed by service in the East Indies as the flagship of the Commander-In-Chief East Indies Station.
Split into simpler sentences: When the war came to a close, "Norfolk" departed Plymouth for a much needed refit in Malta. This was followed by service in the East Indies as the flagship of the Commander-In-Chief East Indies Station.