A very well known variant of the sun disc design is the sun disc with 16 red rays, which was also historically used by Japan's military, particularly the Imperial Japanese Navy. It was first adopted as the naval ensign on October 7, 1889 and was used until the end of World War II in 1945. It was re-adopted on June 30, 1954 and is now used again as Japan's naval ensign, used by the Japan Maritime Self-Defense Force. In the surrounding Asian countries which were occupied by Japan this flag still carries a negative connotation. The JMSDF also employs the use of a masthead pennant. First adopted in 1914 and readopted in 1965, the masthead pennant contains a simplified version of the naval ensign at the hoist end, with the rest of the pennant colored white. The ratio of the pennant is between 1:40 and 1:90.