These U.S. Marines weren't trick or treating when they were asking for a round of Tootsie Rolls.

But when it came down to a matter of life and death, the candies actually ended up saving the American troops.

The YouTube channel Great Big Story released a video explaining how in 1950, a group of soldiers fighting the Korean War in the Chosin Reservoir called for an air drop of 60 mm mortar rounds – but they got chocolate instead.

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However while trapped and freezing in cold temperatures, the servicemen found that the Tootsie Rolls–being able to easily melt in the mouth–could patch their cracked fuel pipes like glue.

(WATCH the video above… and SHARE the cool story with your comrades) – Photo by BraveHeart, CC