WW3 (Lisa's Wedding)

World War 3 is a hypothetical war that apparently occurred some time prior to Lisa's meeting of Hugh in her vision of her future wedding. All that is known about it is that the United Kingdom apparently save the USA's ass much in the way the USA save the UK's ass in World War 2.

Hugh brings it up in retort to Moe's declaration of the USA's saving of the UK in WW2.

Moe: Oh, a English boy. You know we saved your ass in World War 2.

Hugh: Yeah, well we saved your ass in World War 3!

Moe: That's true...