When President Obama was running many considered him a lightweight in military issues. Even Candidate Hillary Clinton implied that with her three o’clock phone call commercial.
During the campaign, President Obama categorically stated that if necessary he would enter Pakistan or any other country unilaterally to get Osama Bin Laden irrespective. Many criticized him for that.
When President Bush had Osama Bin Laden within his sight in Tora Bora he took his eye off the ball. He took us into a war that nearly bankrupted the country. While President Bush declared Mission Accomplished with braggadocio for an unaccomplished mission, President Obama accomplished the mission without much braggadocio.