By Ali Cinar - There is still tension going on between U.S. and Turkey. Especially, extradition of Gulen and YPG-PYD issues are the most important items that need to be resolved. Secretary Mattis was recently in Turkey to meet high level officials in order to keep a healthy relationship.From a military standpoint, Incirlik Base is very important for U.S. and NATO. Unfortunately some Turkish Groups and media is doing a bad campaign to be Incirlik shut down.Doesnt have U.S. a back up plan? Of Course! But there is no point for Turkey to shut down the base.