The presidential candidate met officials and soldiers here this weekend at the start of a global tour.
On Tuesday, a US Army deserter was deported. An unrelated but simultaneous video release showed a Canadian Gitmo detainee taken at age 15 crying, 'Oh Mommy!'
The heightened political tensions between the two allies in the war on terror has prompted US presidential hopefuls to focus on improving Afghanistan strategy.
They seem to be moving from Iraq to Pakistan and Afghanistan.
Insurgents' ability to breach the post in Kunar Province is seen as a significant escalation in the fight.
The attack focuses international pressure on neighboring Pakistan, where many of the militants are said to be based.
There appears to be little consensus over meeting multifaceted challenges that are driven by varying agendas.