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Bucky Barnes First confrontation: Unknown Believed dead at the end of World War II, Captain America's sidekick Bucky is fitted with a cybernetic arm and becomes an unstoppable, untraceable assassin for the Soviets for over 50 years. |
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Captain America First confrontation: Captain America #157.00 The original Viper (Jordon Dixon) formed the first Serpent Squad with his brother the Eel & King Cobra. They had numerous confrontations with Cap & end up losing everytime. |
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Falcon First confrontation: Captain America #157.00 Sam "Snap" Wilson is the long time partner of Captain America |
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Sharon Carter First confrontation: Unknown Inspired by the tales of Captain America and her sister Margaret Carter, she decided to work for S.H.I.E.L.D. |
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Viper First confrontation: Captain America #180.00 Viper (Madame Hydra) killed Viper (Jordan Stryke) and assumed his name. |





