Earth Space Security Zone

The Earth Space Security Zone is an international administrative zone controlled by the United Nations which ensures the security of the planet Earth. With the rise of corporate space vessels, various nations' military vessels, science research vessels, civilian spaceliners, civilian cruise vessels and other craft, an international authority securing Earth's space zone from illegal entries, illegal activities including military incidents, illegal weapons trading, narcotics trade and other new forms of crime was established. The Earth Space Security Zone consists of a series of Earth orbiting satellites, nicknamed "the Grid", which monitors space objects nearing Earth including vessels, space debris and asteroids or meteors.

Administration & Enforcement
The Earth Space Security Zone spans from low Earth orbit, just outside of Earth's atmosphere to 1,000 miles passed Earth's moon's orbit path around the Earth. Administration is controlled by the United Nations Space Administration and enforcement of international regulations and laws by the United Nations Space Enforcement Agency.

The UN Space Enforcement Agency (UNSEA) consists of a fleet of patrol and frigate vessels and peacekeeping space fighters marked with the standard "UN" lettering on blank white spacecraft with the usual blue United Nations flag and symbol. The UNSEA also possesses a larger command vessel and a series of hospital vessels which can be deployed to aid damaged vessels in war, rescue disabled vessels, respond to disasters and crises on other worlds besides Earth such as the moon, Mars or other inhabited zones. Hospital vessels can also be deployed to locations on Earth following a natural disaster or peacekeeping crisis.

Uses

 * Peacekeeping from military conflicts, specifically enforcing international regulation regarding space based battles near Earth within the Security Zone
 * Ensuring uninterrupted space based trade
 * Ensuring security of vessels from unauthorized boarding, hijacking and piracy
 * Enforcing of the illegal trade or transport of illegal weapons, narcotics or proliferation of weapons of mass destruction