Board Thread:Movie Discussions/@comment-27637441-20160128232821/@comment-26383550-20160129110219

Japan did not "summon" them for these reasons: 1.) they did not know they existed. 2.) You can't summon them. They simply have to just wake up when they feel the land is in trouble. 3.) They were not a plot device in Gojira, hence not being able to wake up and fight Godzilla.