Facts: - president: barack obama - predecessor: marie l. yovanovitch - country: armenia - term end: december 2014 - term start: october 6 , 2011 - name: john a. heffern - image: john a. heffern us state dept photo.jpg - birth place: saint louis , missouri - alma mater: michigan state university - ambassador from: united states Based on these bullet points, write a short biography describing the life of john a. heffern .
john a. heffern was the united states ambassador to armenia from 2011 to 2014 .after being nominated in may 18 , 2011 by united states president barack obama , heffern was confirmed by the u.s. senate on september 26 , 2011 and sworn in as ambassador on october 6 , 2011 .he was replaced by ambassador richard m. mills in early 2015 .