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="Bar" />
  </query-continue>
  <query>
    <pages>
      <page pageid="755" ns="0" title="BMS Milcam HB" />
      <page pageid="2856" ns="0" title="BRR Tactical light crossbow" />
      <page pageid="676" ns="0" title="BSA Lewis Gun" />
      <page pageid="5834" ns="0" title="BSA Welrod Mk I" />
      <page pageid="4391" ns="0" title="Baby dragon" />
      <page pageid="4951" ns="0" title="Baden Town" />
      <page pageid="5217" ns="0" title="Ballistic shield - Alpha" />
      <page pageid="5221" ns="0" title="Ballistic shield - Bravo" />
      <page pageid="5225" ns="0" title="Ballistic shield - Delta" />
      <page pageid="5215" ns="0" title="Ballistic shield - Soft" />
    </pages>
  </query>
</api>