"1955: After objecting to Germany's admission into NATO, the Soviet Union joins Albania, Bulgaria, Czechoslovakia, East Germany, Hungary, Poland and Romania in forming the Warsaw Pact.". See chronology in:«Fast facts about NATO». CBC News. 2009 թ․ ապրիլի 6. Վերցված է 2011 թ․ հուլիսի 16-ին.
"1954: Soviet Union suggests it should join NATO to preserve peace in Europe. U.S. and U.K. reject this". See chronology in:«Fast facts about NATO». CBC News. 2009 թ․ ապրիլի 6. Վերցված է 2011 թ․ հուլիսի 16-ին.
"In reaction to West Germany's NATO accession, the Soviet Union and its Eastern European client states formed the Warsaw Pact in 1955." Citation from: NATO website. «A short history of NATO». nato.int. Վերցված է 2015 թ․ դեկտեմբերի 24-ին.
state.gov
history.state.gov
"When the Federal Republic of Germany entered NATO in early May 1955, the Soviets feared the consequences of a strengthened NATO and a rearmed West Germany". Citation from:United States Department of State, Office of the Historian. «The Warsaw Treaty Organization, 1955». Office of the Historian. history.state.gov. Վերցված է 2015 թ․ դեկտեմբերի 24-ին.
