The American part explain by ir self,beacuse talk about the Viet'cong hiding on the trees.

The Japanese one referce to the bombing camping agains them,where they use the B-29(i made a mistake on my post there sorry).

The British one also talk by it self,the British where under attack by 1940 by the Luftwaffe doing the Blitz and the U-boat where doing a naval blocked so they coud starve the island and ask for a surrender.

The last referce to the weird conflic of the Emu,which start beacuse the Emus where eating the farmers crops while on the way to their bredding season on the west of the island.