suez canal crisis
<h3 style="background: none rgb(255, 255, 255); margin: 0.3em 0px 0px; overflow: hidden; padding-top: 0.5em; padding-bottom: 0px; border-bottom: 0px; font-size: 1.2em; line-height: 1.6;"><span class="mw-headline" id="5_November_1956">5 November 1956</span><span class="mw-editsection" style="user-select: none; font-size: small; font-weight: normal; margin-left: 1em; vertical-align: baseline; line-height: 1em; white-space: nowrap; unicode-bidi: isolate;"><span class="mw-editsection-bracket" style="margin-right: 0.25em; color: rgb(84, 89, 93);">[</span><a href="https://en.wikipedia.org/w/index.php?title=List_of_nuclear_close_calls&action=edit§ion=2" title="Edit section: 5 November 1956" style="text-decoration-line: none; color: rgb(11, 0, 128); background: none;">edit</a><span class="mw-editsection-bracket" style="margin-left: 0.25em; color: rgb(84, 89, 93);">]</span></span></h3><p style="margin: 0.5em 0px; line-height: inherit; color: rgb(34, 34, 34); font-size: 14px; background-color: rgb(255, 255, 255);">During the <a href="https://en.wikipedia.org/wiki/Suez_Crisis" title="Suez Crisis" style="text-decoration-line: none; color: rgb(11, 0, 128); background: none;">Suez Crisis</a>, the <a href="https://en.wikipedia.org/wiki/North_American_Aerospace_Defense_Command" title="North American Aerospace Defense Command" style="text-decoration-line: none; color: rgb(11, 0, 128); background: none;">North American Aerospace Defense Command</a> (NORAD) received a number of simultaneous reports, including unidentified aircraft over Turkey, Soviet <a href="https://en.wikipedia.org/wiki/Mikoyan-Gurevich_MiG-15" title="Mikoyan-Gurevich MiG-15" style="text-decoration-line: none; color: rgb(11, 0, 128); background: none;">MiG-15</a> fighters over Syria, a downed British <a href="https://en.wikipedia.org/wiki/English_Electric_Canberra" title="English Electric Canberra" style="text-decoration-line: none; color: rgb(11, 0, 128); background: none;">Canberra medium bomber</a>, and unexpected maneuvers by the Soviet <a href="https://en.wikipedia.org/wiki/Black_Sea_Fleet" title="Black Sea Fleet" style="text-decoration-line: none; color: rgb(11, 0, 128); background: none;">Black Sea Fleet</a> through the <a href="https://en.wikipedia.org/wiki/Dardanelles" title="Dardanelles" style="text-decoration-line: none; color: rgb(11, 0, 128); background: none;">Dardanelles</a> that appeared to signal a Soviet offensive. Considering previous Soviet threats to utilize conventional weapons against France and the UK, U.S. forces believed these events could trigger a <a href="https://en.wikipedia.org/wiki/NATO" title="NATO" style="text-decoration-line: none; color: rgb(11, 0, 128); background: none;">NATO</a> nuclear strike against the Soviet Union. In fact, all reports of Soviet action turned out to be erroneous, misinterpreted, or exaggerated. The perceived threat was due to a coincidental combination of events<b>, including a wedge of swans over Turkey, </b>a fighter escort for the Syrian president returning from Moscow, a British bomber brought down by mechanical issues, and scheduled exercises of the Soviet fleet.<sup id="cite_ref-nuclear_files_20_4-0" class="reference" style="line-height: 1; unicode-bidi: isolate; white-space: nowrap; font-size: 11.2px;"><a href="https://en.wikipedia.org/wiki/List_of_nuclear_close_calls#cite_note-nuclear_files_20-4" style="text-decoration-line: none; color: rgb(11, 0, 128); background: none;">[4]</a></sup></p>