 Complete the following phrase:  When the Pacific War erupted with the invasion of Malaya and bombing of Pearl Harbor in December 1941, the G3M was by this time considered to be antiquated, but still three front-line units the 22nd to 24th koku sentai were operating a total of 204 G3M2s in four kōkūtai naval air corps in the central Pacific and of these 54 aircraft from the Takao Kōkūtai were deployed from Formosa in the opening of the 