Strategic Scientific Reserve is top secret government agency that was founded by Chester Phillips.
The Strategic Scientific Reserve was formed in 1940 on the orders of President Franklin D. Roosevelt. Though the United States weren't directly involved in World War II at the time. The S.S.R. was formed of greatest minds of the Allied nations who assembled to battle the Nazis in occupied Europe. The commanding officer of the S.S.R. was Colonel Chester Phillips. The same year when the SSR was formed, he persuaded the young American industrialist Howard Stark to join the agency, after the group of assassins sent by HYDRA, Hitler's special weapons division, tried to kill them both. Shortly after, they organized the rescue of Abraham Erskine from Castle Kaufmann where he was being held by Johann Schmidt, the commanding officer of HYDRA. Phillips sent one of his best agents, Peggy Carter, to secure Erskine's release.
The S.S.R. goal is to create an army of super soldiers that could defeat anything the Axis powers had on the battlefield. This led to the Operation: Rebirth based on the work of their newest acquisition, Erskine transform Steve Rogers into the first super soldier. After Erskine is killed by Heinz Kruger. Soon after, the top priority mission of the S.S.R. was to take down HYDRA. With Steve as the only super-soldier, he was used as a propaganda tool.
In 1943, several members of the S.S.R. were in Italy. When Steve discovered that his friend James Barnes had been captured by HYDRA, he flew behind enemy lines and led a successful escape of prisoners from the HYDRA factory. Shortly after their break-out, Steve form a special elite unit led by himself, called the Howling Commandos. In 1945, the efforts of the S.S.R. were successful. HYDRA was destroyed, and the Axis powers defeated.