Site contamination at weapons production facilities is commonplace. Though not traditionally seen as a global security issue, site contamination and other site environmental impacts can exacerbate international tensions (e.g., if air or water pollution from the site crosses international borders). In addition, the environmental condition of the site will affect the ability to transition the site to non-defense activities (See Tour Stop #8 and Stop #9 for more details on transition issues).

Key global security objectives include: