Confirming that the US military presence inside Syria had little to do with fighting ISIS, US Secretary of State Rex Tillerson unveiled in detail today the real US strategy for Syria: overthrow of the Assad government. 
In a speech at Stanford University's Hoover Institution and introduced by President George W. Bush's Secretary of State Condoleeza Rice, Secretary Tillerson vowed that the United States military would continue to occupy Syrian territory until three conditions are met:

First: ISIS must be destroyed. 

This condition is made all the more problematic by the well-reported fact that it is the United States government that at every turn seems to pull ISIS chestnuts out of the fire. From handing them weapons to allowing them to escape when they are trapped in places like Raqqa, it almost seems like the US does not want to really see the end of ISIS.

Second: Assad must go. 

Tillerson's admission that this is a sine qua non for any US military departure from Syria confirms that the Trump foreign policy is no different from that of Hillary Clinton or her former boss, President Obama. Recall that as part of his "thank you" tour, President-elect Trump reiterated promises made by candidate Trump to break with the past: