National defense may refer to:
- National security, a nation's use of military, economic and political power to maintain survival
- National missile defense, a military strategy to shield a country from missiles
- National Defense Service Medal, a decoration of the U.S. military
- National Defense Reserve Fleet, a reserve of U.S. merchant ships
- National Defense University in Washington, D.C.
- National Defense Medical College in Japan
- National Defense Medical Center in Taiwan
- National Defense College of the Philippines
- National Defense Research Committee in the U.S. in the 1940s
- National Defense Education Act
- Government of National Defense in Africa in the 1870s
Famous quotes containing the words national and/or defense:
“The Federated Republic of Europe—the United States of Europe—that is what must be. National autonomy no longer suffices. Economic evolution demands the abolition of national frontiers. If Europe is to remain split into national groups, then Imperialism will recommence its work. Only a Federated Republic of Europe can give peace to the world.”
—Leon Trotsky (1879–1940)
“Though a censure lies against those who are poor and proud, yet is Pride sooner to be forgiven in a poor person than in a rich one; since in the latter it is insult and arrogance; in the former, it may be a defense against temptations to dishonesty; and, if manifested on proper occasions, may indicate a natural bravery of mind, which the frowns of fortune cannot depress.”
—Samuel Richardson (1689–1761)