The National Guard’s vision for the 21st century is based on four guiding principles:• The security and defense of our homeland in support of the Global War on Terrorism, at home and abroad, is the number one priority of the National Guard.• The National Guard is transforming as we look to the future, enhancing readiness and capabilities for rapid action across the full spectrum of military operations both at home and abroad.• The National Guard remains the constitutionally-based citizen militia that continues to serve our nation so well in peace and war.• America insists on a relevant, reliable, ready and accessible National Guard transformed for the 21st century.The terrorist attacks of 11 September 2001, along with Department of Defense (DoD) Transformation initiatives, have had and will have profound positive effects on each of these areas.