Not as big as Afghanistan or Iraq. Before accusing atleast do some checking how how much aid has gone where and in which sectors. And why should Pakistan show its gratitude ?? America is the reason we are in this sh*t, the world is in this sh*t. Do you know how much Pakistan has suffered economically due to this War of Terror launched by the US to serve its own purposes ?? Any idea on the human cost Pakistan has to pay ?? Why don't you ask US/NATO, that why do they leave border posts wide open, full valleys / province empty on the Afghan side when we do critical operations on this side of the border, thus the militants from this side crossing freely to the Afghan side and there Afghans giving them full support, protection and the US/NATO forces doing nothing about it ?? Do you have any idea how and how much US aid money to Afghanistan is being channeled to Taliban as protection money ?? Why is Opium production on rise after US invaded Afghanistan ?? Before asking Pakistan, do ask the US and other western countries for their contribution in this mess. Pakistan has paid a very heavy price, economically as well as militarily & human cost wise, much more then any nation has done, who created this whole mess.