<a href="https://en.wikipedia.org/wiki/Philippine–American_War" id="mwhA" rel="mw:WikiLink" title="Philippine–American War">Philippine–American War</a>: <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Filipino_people" id="mwhQ" rel="mw:WikiLink" title="Filipino people">Filipino</a> guerrillas launch a surprise attack on U.S. infantry and begin a <a href="https://en.wikipedia.org/wiki/Siege_of_Catubig" id="mwhg" rel="mw:WikiLink" title="Siege of Catubig">four-day siege</a> of <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Catubig,_Northern_Samar" id="mwhw" rel="mw:WikiLink" title="Catubig, Northern Samar">Catubig</a>, Philippines.<sup about="#mwt88" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-15"}}' id="cite_ref-15" rel="dc:references" typeof="mw:Extension/ref"><a href="./April_15#cite_note-15" id="mwiA" style="counter-reset: mw-Ref 15;"><span class="mw-reflink-text" id="mwiQ">[15]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-15"><cite about="#mwt85" class="citation book cs1" id="CITEREFAlegre2009">Alegre, Joycie Y. Dorado (2009). <i id="mwB3U">Abaknon of Samar. Katutubo: Profiles of Philippine Cultural Communities</i>. Manila: National Commission on Culture and the Arts. p.<span id="mwB3Y" typeof="mw:Entity"> </span>12. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwB3c" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwB3g" typeof="mw:Entity"> </span><a href="./Special:BookSources/9789718141618" id="mwB3k" rel="mw:WikiLink" title="Special:BookSources/9789718141618"><bdi id="mwB3o">9789718141618</bdi></a>.</cite><span about="#mwt85" class="Z3988" id="mwB3s" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Abaknon+of+Samar.+Katutubo%3A+Profiles+of+Philippine+Cultural+Communities&amp;rft.place=Manila&amp;rft.pages=12&amp;rft.pub=National+Commission+on+Culture+and+the+Arts&amp;rft.date=2009&amp;rft.isbn=9789718141618&amp;rft.aulast=Alegre&amp;rft.aufirst=Joycie+Y.+Dorado&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AApril+15"></span></span>