The <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Edict_of_Pistres" id="mwIQ" rel="mw:WikiLink" title="Edict of Pistres">Edict of Pistres</a> of <a href="https://en.wikipedia.org/wiki/Charles_the_Bald" id="mwIg" rel="mw:WikiLink" title="Charles the Bald">Charles the Bald</a> orders defensive measures against the <a href="https://en.wikipedia.org/wiki/Vikings" id="mwIw" rel="mw:WikiLink" title="Vikings">Vikings</a>.