You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allredirects garcontinue="Michael_Houghtaling|72" />
  </query-continue>
  <query>
    <pages>
      <page pageid="71" ns="0" title="Duke of Silverfall" />
      <page pageid="84" ns="0" title="Queen Emilie" />
      <page pageid="134" ns="0" title="Phairon" />
      <page pageid="135" ns="0" title="Draal System" />
      <page pageid="136" ns="0" title="Draal research facility" />
      <page pageid="141" ns="0" title="Marine Special Warfare Badge" />
      <page pageid="142" ns="0" title="Marine Commando Leadership Ribbon" />
      <page pageid="150" ns="0" title="The Helix" />
      <page pageid="214" ns="0" title="Danni Rahn" />
      <page pageid="217" ns="0" title="Lieda Mothma" />
    </pages>
  </query>
</api>