<a href="https://en.wikipedia.org/wiki/World_War_I" id="mwbQ" rel="mw:WikiLink" title="World War I">World War I</a>: <a href="https://en.wikipedia.org/wiki/Kingdom_of_Italy" id="mwbg" rel="mw:WikiLink" title="Kingdom of Italy">Italy</a> secretly signs the <a href="https://en.wikipedia.org/wiki/Treaty_of_London_(1915)" id="mwbw" rel="mw:WikiLink" title="Treaty of London (1915)">Treaty of London</a> pledging to join the <a href="https://en.wikipedia.org/wiki/Allies_of_World_War_I" id="mwcA" rel="mw:WikiLink" title="Allies of World War I">Allied Powers</a>.<sup about="#mwt41" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-6"}}' id="cite_ref-6" rel="dc:references" typeof="mw:Extension/ref"><a href="./April_26#cite_note-6" id="mwcQ" style="counter-reset: mw-Ref 6;"><span class="mw-reflink-text" id="mwcg">[6]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-6"><cite about="#mwt38" class="citation web cs1" id="mwBjw"><a class="external text" href="https://www.britannica.com/event/Treaty-of-London" id="mwBj0" rel="mw:ExtLink nofollow">"Treaty of London | European history <span id="mwBj4" typeof="mw:Entity">[</span>1915<span id="mwBj8" typeof="mw:Entity">]</span> | Britannica"</a>. <i id="mwBkA">www.britannica.com</i><span class="reference-accessdate" id="mwBkE">. Retrieved <span class="nowrap" id="mwBkI">2022-01-10</span></span>.</cite><span about="#mwt38" class="Z3988" id="mwBkM" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=unknown&amp;rft.jtitle=www.britannica.com&amp;rft.atitle=Treaty+of+London+%7C+European+history+%5B1915%5D+%7C+Britannica&amp;rft_id=https%3A%2F%2Fwww.britannica.com%2Fevent%2FTreaty-of-London&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AApril+26"></span></span>