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>
    <alllinks alcontinue="Capitán_Ximenez|13" />
  </query-continue>
  <query>
    <alllinks>
      <l ns="0" title="Batalla de Chupas" />
      <l ns="0" title="Batalla de Chupas" />
      <l ns="0" title="Batalla de Jaquinahuana" />
      <l ns="0" title="Batalla de Las Salinas" />
      <l ns="0" title="Batalla de Las Salinas" />
      <l ns="0" title="Batalla de Quito" />
      <l ns="0" title="Batallas" />
      <l ns="0" title="Benito de Carvajal" />
      <l ns="0" title="Capitán Castro" />
      <l ns="0" title="Capitán Ximenez" />
    </alllinks>
  </query>
</api>