Japan - North Korea problem

The tensions between North Korea and Japan entered a new phase and the situation seems hostile...Earlier Japan had warned that it will destroy debris from its rocket launch...Whereas DPRK said that it will consider such acts as war against the nation and start military agression...So in order to consider its safety Japan has equipped itself with land-to-air missile and equipped a base in the area..Batteries of PAC-3 land-to-air missile interceptors have been sent to two northern prefectures