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In 1946, Junior Juniper, along with other Howling Commandos Dum Dum Dugan, Happy Sam Sawyer and Pinky Pinkerton joined the SSR-agents Peggy Carter, Jack Thompson, Rick Ramirez, and Mike Li in an infiltration mission into the Red Room Academy in Belarus.
During the mission, he was shot and killed by Eva, one of the students of the Academy, who used Dum Dum Dugan's pistol to shoot him.
- M1A1 Thompson: The standard assault weapon used by agents of the Strategic Scientific Reserve following World War II, and also Juniper's weapon of choice. He carried it during the infiltration mission into a facility in the Soviet Union, but he did not have any opportunity to use it.
- Howling Commandos
- Strategic Scientific Reserve
- In the comics, Junior Juniper joined the United States Army following the bombing of Pearl Harbor, becoming one of Nick Fury's best friends. He died in Berlin during a mission, and was replaced by Pinky Pinkerton. He was the first named Marvel Comics character to die.
- Juniper was the one who came up with the name "Howling Commandos".