EARLY EPISODE: The Battle of Saipan (Patreon)

US Marines and Soldiers invade the fortress island of Saipan and end up hating each other almost as much as the Japanese. 

Sources: 

http://www.battleofsaipan.com/seabee.htm

Philip Crowl, "Campaign in the Marianas", vol. 9

Richard Frank. Downfall: End of the Imperial Japanese Empire

https://warfarehistorynetwork.com/article/saipan-a-crucial-foothold-in-the-marianas/

https://warfarehistorynetwork.com/article/duel-to-the-death/

https://warfarehistorynetwork.com/article/the-war-between-the-smiths-high-command-feud-at-saipan/