Who and where the enemy is in WWⅢ？

The Sakura, Cherry blossom season comes around periodically as usual and it will soon diminish, but the unprecedented disaster by CV does not end.
Prime Minister Abe will declare "Contingency" today. The unusual state would last as long as 1 month till the end of consecutive holidays next month. What we can do now is not to go out, how come?
Even a strongest US aircraft carrier might be defeated by an invisible enemy? It's War Time now? But, the enemy is not a humankind nor specific strange nations nor different religious group. The enemy for all of us is clear at all, now is the time to be a Single Unity!