Yes, President Trump has recently fired or forced out a number of highly respected retired four-star Marine generals from his administration. But the resignation of former four-star Marine Gen. Anthony Zinni on Tuesday is no obvious rebuke to Trump.

Instead, it appears to reflect Zinni’s frustration with the Sunni-Arab monarchies in regards to their diplomatic freeze. That freeze centers around an economic blockade of Qatar by a Saudi-led alliance of other Sunni monarchies. Those nations are infuriated by Qatar’s excessive support for Islamist revolutionary movements across the Middle East and Doha’s increasingly close relationship with Iran.