<a href="https://en.wikipedia.org/wiki/Sino-Vietnamese_War" id="mw8A" rel="mw:WikiLink" title="Sino-Vietnamese War">Sino-Vietnamese War</a>: The <a href="https://en.wikipedia.org/wiki/People's_Liberation_Army" id="mw8Q" rel="mw:WikiLink" title="People's Liberation Army">People's Liberation Army</a> crosses the border back into China, ending the war.<sup about="#mwt114" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-21"}}' id="cite_ref-21" rel="dc:references" typeof="mw:Extension/ref"><a href="./March_16#cite_note-21" id="mw8g" style="counter-reset: mw-Ref 21;"><span class="mw-reflink-text" id="mw8w">[21]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-21"><cite about="#mwt111" class="citation book cs1" id="CITEREFGoldstein1992">Goldstein, Erik (1992). <a class="external text" href="https://books.google.com/books?id=KWWKAgAAQBAJ&amp;pg=PA120" id="mwCqo" rel="mw:ExtLink nofollow"><i id="mwCqs">Wars and peace treaties, 1816-1991</i></a>. London: Routledge. p.<span id="mwCqw" typeof="mw:Entity"> </span>120. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwCq0" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwCq4" typeof="mw:Entity"> </span><a href="./Special:BookSources/978-1-134-89912-8" id="mwCq8" rel="mw:WikiLink" title="Special:BookSources/978-1-134-89912-8"><bdi id="mwCrA">978-1-134-89912-8</bdi></a>.</cite><span about="#mwt111" class="Z3988" id="mwCrE" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Wars+and+peace+treaties%2C+1816-1991&amp;rft.place=London&amp;rft.pages=120&amp;rft.pub=Routledge&amp;rft.date=1992&amp;rft.isbn=978-1-134-89912-8&amp;rft.aulast=Goldstein&amp;rft.aufirst=Erik&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DKWWKAgAAQBAJ%26pg%3DPA120&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AMarch+16"></span></span>