The Operation Rebirth is a secret Allied military project that creates a line of supersoldiers out of ordinary men including stick-thin Steve Rogers through the Super Soldier Serum.
The project was led by Dr. Abraham Erskine, the creator of the Super Soldier Serum.
The project was sucessful creating a Super Soldier out from Steve Rogers who will be later known as Captain America.
However, the sample of the serum was lost and Erskine's knowledge of it died with him, leaving Captain America the only true Super Soldier in the world.
After Cap's disappearance at the end of the war, S.H.I.E.L.D. had restarted the project in recreating the serum in their plan to create their own Super Soldiers in their organization.
But they had created superpowered beings from the imperfect versions of the serum whether hero or villain.
It is unknown if the project was closed down or still active.
- Dr. Abraham Erskine
- Captain America