Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Philip IV of Spain:

"

Philip and Olivares attempted to address the perceived issues of the army, which they concluded were primarily due to the falta de cabezas, or a lack of leadership.[citation needed] In keeping with their wider agenda of renewing the concepts of duty, service and aristocratic tradition, the King agreed to efforts to introduce more grandees into the higher ranks of the military, working hard to overcome the reluctance of many to take up field appointments in the Netherlands and elsewhere.[1]