<a href="https://en.wikipedia.org/wiki/Vietnam_War" id="mwsQ" rel="mw:WikiLink" title="Vietnam War">Vietnam War</a>: <a href="https://en.wikipedia.org/wiki/President_of_the_United_States" id="mwsg" rel="mw:WikiLink" title="President of the United States">President</a> <a href="https://en.wikipedia.org/wiki/Richard_Nixon" id="mwsw" rel="mw:WikiLink" title="Richard Nixon">Richard Nixon</a> announces that the United States will engage <a href="https://en.wikipedia.org/wiki/North_Vietnam" id="mwtA" rel="mw:WikiLink" title="North Vietnam">North Vietnam</a> in <a href="https://en.wikipedia.org/wiki/Operation_Linebacker_II" id="mwtQ" rel="mw:WikiLink" title="Operation Linebacker II">Operation Linebacker II</a>, a series of <a href="https://en.wikipedia.org/wiki/Christmas" id="mwtg" rel="mw:WikiLink" title="Christmas">Christmas</a> bombings, after peace talks collapsed with North Vietnam on the 13th.