"The National Guard is an increasingly vital component in the defense and security of the United States. Its federal role has grown with its major roles in U.S. and coalition country defense operations worldwide over the past several years. The Guard has been deployed in significant numbers in the Global War On Terrorism (GWOT) and Operation Iraqi Freedom (OIF) as a full-scale partner in the armed services Total Force policy. In the United States, meanwhile, the President has proposed sending up to 6,000 National Guard personnel to the southern border region to temporarily assist in interdicting illegal immigration. This report briefly presents statistical information on the National Guard's role in defense and security, including its deployments in support of OIF and GWOT."
CRS Report for Congress, RS22451