Is fighting ISIS a Tactic or a Strategy?

A disturbing aspect of the "Testing of Obama's ISIS Strategy" headline of a few days ago is the public's misperception of the terms "tactic" and "strategy." Tactics are short term actions toward a long term strategy of resolving an issue.  Taking back Mosul from ISIS is a tactic not a strategy.  When it is thought of in those terms the lack of end game becomes apparent.  Taking back Mosul from ISIS is to take sides in a civil war given Iraq's current factious politics.  President Obama has a reputation of a clear thinker but apparently not in his determination to support a unified Iraq.  Please Mr. President consider the grand strategy to be to pacify the region and a tactic toward that goal is let Iraq split itself in Shia, Sunni and Kurdish nations that look inward and serve its people.