Space debris threatens not only spacefaring nations but all people who rely on the myriad services empowered from space: telecommunications, weather, space exploration, Earth observation, space science and national security. In short, debris is an international problem for all humankind. Moreover, much debris is at high-enough altitudes that it could threaten space assets for hundreds of years before final destruction upon Earth re-entry. Orbital debris is a long-lived problem threatening future generations.