Is anyone worried about who would win a war with Iran?

Iran rejects U.S. claim it was behind Saudi oil strikes, says ready for war

While the Dems point to the fact that we "could not even beat down the Taliban,"  still who is seriously worried about a war with Iran.  Understand that the Russians spent 10 or 12 years fighting the Taliban  Never forget that Bush left Afghanistan with only 400 or so Taliban alive in the that country  . . . .  so we beat them once.  AND,  the Taliban conflict,  the most recent conflict,  was an Obama creation,  or,  have you all forgotten that Afghanistan was "Obama's war."  We are not in Afghanistan because of Trump.  Our President is only trying to finish what Barack began anew.  

But back to Iran.  The Taliban conflict is not the only model for war versus the Muslims.  Iraq and Kuwait should be included, as well.   And if Obama had not pulled out of Iraq when he did,  that war would have been final long before now.  The Taliban is not a country, and,  because they are not a nation within itself,  they are an impossible moving target.  By contrast,  Iran is a country,  complete with a national army and boundaries to be defended.  The Iranians are precisely the kind of military power our military prefers.