This is based on opinion. Please don't list it on a work's trope example list.
Tear Jerker / A Bridge Too Far
Plenty, particularly the scene at the end where the injured soldiers sing "Abide With Me" as they wait for the Germans to take them prisoner.
The British paratrooper who runs out to retrieve a supply canister that landed just within reach of them. He's killed by a German sniper, and when it opens, it's full of red berets instead of food or ammo.
The Dutch citizens desperately barricading the streets of Arnhem by stacking their own dead, including a young boy by his father, only for it to be futile against German armor.