Then there's the WW2 historically-based film
Kokoda. The halting of the Japanese advance from northern New Guinea along the Kokoda track in an effort to take Port Moresby on the southern coast. If Port Moresby was captured, there would be nothing between the Japanese forces & Australia. Before American land forces were deployed to Port Moresby, the track was sucessfully defended & the japanese repelled by poorly trained, ill-equiped, volunteer, "cholocate soldiers" (nick-named 'choco's'). Called so, because it was thought they'd melt in the heat of jungle warfare battle. They didn't!