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The 30 original member states of NATO meet in Washington to establish a mutual defense treaty in response to perceived Russian aggression. -
After the London and Paris conferences, West Germany was allowed to rearm itself militarily and was permitted to join NATO
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The Federal Republic of Yugoslavia was hit with an arms embargo and sanctions.
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NATO took its first wartime action when it shot down four Bosnian Serb aircraft after they violated the no-fly zone imposed by NATO
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NATO begins Operation Allied Force, a bombing campaign targeting the military capabilities of the Federated Republic of Yugoslavia. The campaign was attacked by human rights advocates for the high rate of civilian casualties, with 90 Human Rights Watch confirmed incidents of civilians dying.