WASHINGTON (AFP) - The father of a US soldier captured by the Taliban in Afghanistan pleaded for his sons captors to release him, and asked Pakistan to diligently help, in a video posted online Friday. Robert Bergdahl, in a video uploaded to YouTube, said he can remain silent no longer about the plight of his 25-year-old son, Private First Class Bowe Bergdahl, who was captured in June 2009. Appearing in a dark shirt and bushy long beard, Robert Bergdahl addressed leaders of the Pakistani armed forces, the Taliban, and the Haqqani militants, in comments coming just a few days after a covert US mission inside Pakistan killed Osama bin Laden. We give our condolences and thanks to those who have fallen for Pakistan, he said to Pakistani military leaders.Strangely to some, we must also thank those who have cared for our son for almost two years, he added, addressing the Taliban and Haqqanis. We know our son is a prisoner and at the same time a guest in your home.