Sir, Afghanistan's six neighbours—you mentioned three, China, Pakistan, and Iran, which are arguably the most influential—are playing a role. In many instances, as a result of some of the Rome discussions and indeed the St. Petersburg accords, they deliberately excluded themselves, recused themselves from discussions on internal security issues of the Afghan people. President Karzai, with whom I discussed these issues several years ago, is more than capable of providing supplementals to a variety of the discussions and nuances involved in some of the debates.
You asked about those three and whether or not they were assisting in the reconstruction efforts of Afghanistan. The answer is yes. China has actually been very generous in donating funds, engineers, and expertise on part of the ring road that connects Herat and Kandahar, up through Kabul to Jalalabad. They've also been intimately involved in some of the large irrigation projects and the hydroelectric dam facilities.
Though Pakistani engineers themselves only rarely go into Afghanistan, Pakistan has funded a significant number of reconstruction projects.
Iran has actually been very generous in its support to the Hazara community, those located within the central massif of the Hindu Kush. The northern neighbours, Uzbekistan,Tajikistan, and Turkmenistan, have been less so, at least to my knowledge.