The 370 - man strong 5th Company of the 2nd Maizuru Special Naval Landing Force was also assigned to join the assault on Guam .
The 2nd Maizuru Special Naval Landing Force was based at Saipan in the Marianas .
The 370 - man strong 5th Company of the 2nd Maizuru Special Naval Landing Force , which was based at Saipan in the Marianas , was also assigned to join the assault on Guam .