Planetary shield

Developed ten years into the Human-Shey war, they were made to counteract the Shey's ability to utterly destroy planets in a matter of minutes.

Development
The Red Hand and several alien companies were contracted to develop planetary shielding. Funding was also provided by the Human Republic, Nayam Federation, Nainehta Republic, Cetza Alliance, and the Saslab. The project was overseen by the CIA, and all records on it are kept under tight lockdown.

Strength
The CIA holds all of the technical information, and refuses to release any of it. Eye-witness reports show, however, that the shields work fine under extreme stress. They have been shown to withstand around fifty petatons, though this was on the weaker versions on outer colony worlds. The Human Navy estimates that the planetary shield around Earth could take up to a zettaton of TNT, though this is a wild guess.