<a href="https://en.wikipedia.org/wiki/Vietnam_War" id="mw1g" rel="mw:WikiLink" title="Vietnam War">Vietnam War</a>: United States and <a href="https://en.wikipedia.org/wiki/South_Vietnam" id="mw1w" rel="mw:WikiLink" title="South Vietnam">South Vietnamese</a> forces <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Cambodian_Campaign" id="mw2A" rel="mw:WikiLink" title="Cambodian Campaign">invade Cambodia</a> to hunt <a href="https://en.wikipedia.org/wiki/Viet_Cong" id="mw2Q" rel="mw:WikiLink" title="Viet Cong">Viet Cong</a>.<sup about="#mwt155" 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="./April_29#cite_note-28" id="mw2g" style="counter-reset: mw-Ref 28;"><span class="mw-reflink-text" id="mw2w">[28]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-28"><cite about="#mwt152" class="citation book cs1" id="CITEREFRoot2013">Root, John D. (2013). "Cambodian Incursion (April 29—July 22, 1970)". In Willbanks, James H. (ed.). <a class="external text" href="https://books.google.com/books?id=SCNXJkZirLUC" id="mwCNY" rel="mw:ExtLink nofollow"><i id="mwCNc">Vietnam War: The Essential Reference Guide</i></a>. Santa Barbara, California: ABC-CLIO. p.<span id="mwCNg" typeof="mw:Entity"> </span>25. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwCNk" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwCNo" typeof="mw:Entity"> </span><a href="./Special:BookSources/9781610691031" id="mwCNs" rel="mw:WikiLink" title="Special:BookSources/9781610691031"><bdi id="mwCNw">9781610691031</bdi></a> <span id="mwCN0" typeof="mw:Entity">–</span> via Google Books.</cite><span about="#mwt152" class="Z3988" id="mwCN4" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=bookitem&amp;rft.atitle=Cambodian+Incursion+%28April+29%E2%80%94July+22%2C+1970%29&amp;rft.btitle=Vietnam+War%3A+The+Essential+Reference+Guide&amp;rft.place=Santa+Barbara%2C+California&amp;rft.pages=25&amp;rft.pub=ABC-CLIO&amp;rft.date=2013&amp;rft.isbn=9781610691031&amp;rft.aulast=Root&amp;rft.aufirst=John+D.&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DSCNXJkZirLUC&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AApril+29"></span></span>