"United States" . . "United States." . "1990-99." . . . "Threats to US national security"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . "Threats to U.S. national security"@en . . "Threats to U.S. national security" . "Military expenditures." . . "Middle East." . . . . "Europe." . . "Threat." . . "Committee on National Security/House of Representatives." . . "Defence policy." . . "Asia." . . "Security policy." . .