Gate old world blues

Disclaimer:I do not own fallout or gate as fallout belongs to betheasda softworks and gate belongs to takumi yanai illustrated by Daisuke Izuka and kurojish

3 years after the great war of 2077 most of human civilization was reduced to cinders by atomic fire, remants of the US military has despite the odds managed to restore order to america but it is barely holding on a thread, an unknown gate opened up in the ruins of Boston. Will this gate be the salvation this world needs or will america repeat the same mistake again but one thing is for certain war war never changes.How will the jsdf react to this post apocalyptic earth