<a href="https://en.wikipedia.org/wiki/World_War_I" id="mwARc" rel="mw:WikiLink" title="World War I">World War I</a>: A <a href="https://en.wikipedia.org/wiki/Christmas_truce" id="mwARg" rel="mw:WikiLink" title="Christmas truce">series of unofficial truces</a> occur across the <a href="https://en.wikipedia.org/wiki/Western_Front_(World_War_I)" id="mwARk" rel="mw:WikiLink" title="Western Front (World War I)">Western Front</a> to celebrate <a href="https://en.wikipedia.org/wiki/Christmas" id="mwARo" rel="mw:WikiLink" title="Christmas">Christmas</a>.<sup about="#mwt150" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-28"}}' id="cite_ref-28" rel="dc:references" typeof="mw:Extension/ref"><a href="./December_25#cite_note-28" id="mwARs" style="counter-reset: mw-Ref 28;"><span class="mw-reflink-text" id="mwARw">[28]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-28"><cite about="#mwt147" class="citation book cs1" id="CITEREFAshworth2000">Ashworth, Tony (2000). <i id="mwCUc">Trench Warfare 1914–1918: The Live-and-Let-Live System</i>. London: Pan. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwCUg" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwCUk" typeof="mw:Entity"> </span><a href="./Special:BookSources/0330480685" id="mwCUo" rel="mw:WikiLink" title="Special:BookSources/0330480685"><bdi id="mwCUs">0330480685</bdi></a>.</cite><span about="#mwt147" class="Z3988" id="mwCUw" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Trench+Warfare+1914%E2%80%931918%3A+The+Live-and-Let-Live+System&amp;rft.place=London&amp;rft.pub=Pan&amp;rft.date=2000&amp;rft.isbn=0330480685&amp;rft.aulast=Ashworth&amp;rft.aufirst=Tony&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ADecember+25"></span></span>