[TexasGator]

“World War II history: Saipan folded like a cheap tent when invaded. Guam fought bravely and resisted until U.S. forces returned.”

History check. Saipan was part of Japan having been awarded to Japan by the League of Nations in 1918.

[Vigilanteman]

Not part of Japan, but governed by Japan as a temporary trust territory. So, yeah, the Japanese invasion was more like Hitler's invasion of Austria.

FWIW, both Saipan and Guam are peopled by the same Chamarro natives, but the Guamanians still view the Saipanese as collaborators who are not their equals.