With hard situation in Afghanistan, It is difficult for United States to win in Afghanistan. With limited troops, United States could not the war. US commander in Afghanistan, Stanley Mac Chrystal, warned the situation is hard.
Even Afghanistan is hard, but United States situation is harder than Afghanistan. Most United States young men in dangerous. About thirty percent young men could not pass high school. In Mexico border, there are some drug and firearm problems.
Some region has unemployment rate similar with under developed country like Michigan and California. Michigan which industrial heart is life on government support. California is near bankruptcy.
United States has poor record in National building. United States has been defeated in Somalia. Now, Iraq make some massive resistance.
Even half a million troops in Afghanistan will not ever conquer Taliban. Afghanistan is a nightmare for aggressor such as Alexander the great, United Kingdom, Union Soviet and etc. With this situation, US will not ever win in Afghanistan.
Hamid Karzai cannot lead Afghanistan because the government is corrupt. Karzai has no ability to gain tribal warlord. Meanwhile, United States is not a popular country for Afghanistan. Afghan people hates United States because US attack their country.