The United Kingdom proclaims a <a href="https://en.wikipedia.org/wiki/Protectorate" id="mwyg" rel="mw:WikiLink" title="Protectorate">protectorate</a> over <a href="https://en.wikipedia.org/wiki/Tonga" id="mwyw" rel="mw:WikiLink" title="Tonga">Tonga</a>.<sup about="#mwt43" 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="./May_18#cite_note-6" id="mwzA" style="counter-reset: mw-Ref 6;"><span class="mw-reflink-text" id="mwzQ">[6]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-6"><cite about="#mwt40" class="citation book cs1" id="CITEREFMinneropWolfrumLachenmann2019">Minnerop, Petra; Wolfrum, Rüdiger; Lachenmann, Frauke (2019). <a class="external text" href="https://books.google.com/books?id=HiKQDwAAQBAJ&amp;pg=PA784" id="mwBxU" rel="mw:ExtLink nofollow"><i id="mwBxY">International Development Law: The Max Planck Encyclopedia of Public International Law</i></a>. Oxford University Press. p.<span id="mwBxc" typeof="mw:Entity"> </span>784. <a class="mw-redirect" href="./ISBN_(identifier)" id="mwBxg" rel="mw:WikiLink" title="ISBN (identifier)">ISBN</a><span id="mwBxk" typeof="mw:Entity"> </span><a href="./Special:BookSources/978-0-19-883509-7" id="mwBxo" rel="mw:WikiLink" title="Special:BookSources/978-0-19-883509-7"><bdi id="mwBxs">978-0-19-883509-7</bdi></a>.</cite><span about="#mwt40" class="Z3988" id="mwBxw" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=International+Development+Law%3A+The+Max+Planck+Encyclopedia+of+Public+International+Law&amp;rft.pages=784&amp;rft.pub=Oxford+University+Press&amp;rft.date=2019&amp;rft.isbn=978-0-19-883509-7&amp;rft.aulast=Minnerop&amp;rft.aufirst=Petra&amp;rft.au=Wolfrum%2C+R%C3%BCdiger&amp;rft.au=Lachenmann%2C+Frauke&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DHiKQDwAAQBAJ%26pg%3DPA784&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AMay+18"></span></span>