https://www.globalfirepower.com/countries-comparison-detail.asp?form=form&country1=united-states-of-america&country2=north-korea&Submit=COMPARE
https://en.wikipedia.org/wiki/Korean_People%27s_Army_Air_and_Anti-Air_Force
https://en.wikipedia.org/wiki/List_of_active_ships_of_the_Korean_People%27s_Navy
https://en.wikipedia.org/wiki/Submarines_in_the_United_States_Navy#Composition_of_the_current_force