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="Hessian_Leib-Regiment" />
  </query-continue>
  <query>
    <pages>
      <page pageid="2532" ns="0" title="Belgia Dragoons" />
      <page pageid="5377" ns="0" title="Bellone (32)" />
      <page pageid="1913" ns="0" title="Belozerskiy Infantry" />
      <page pageid="3933" ns="0" title="Bothe Cavalry" />
      <page pageid="3948" ns="0" title="Breidenbach Dragoons" />
      <page pageid="5194" ns="0" title="Canitz Infantry" />
      <page pageid="2124" ns="0" title="Chuguev Cossacks" />
      <page pageid="3942" ns="0" title="Dachenhausen Dragoons" />
      <page pageid="7376" ns="0" title="Gavriil (66)" />
      <page pageid="5492" ns="0" title="Hampton Court (64)" />
    </pages>
  </query>
</api>