<p>It sounds close to the lead-from-behind approach adopted by the Obama Administration for Libya: air strikes but no troops, a de facto alliance with moderate local forces to do the ground fighting, and no follow-up. The approach at least succeeded in ending the Gadhafi regime, but it failed as a policy because the U.S. and NATO abandonment of Libya after Gadhafi’s fall allowed jihadist groups to flourish as the country descended into chaos. If anyone hasn’t learned the lessons of Libya, it’s Mr. Cruz.</p>