But you're only perspective is of that pertaining America. Iraq was wrong. No argument from me as an American. Some here are trying to fix this through our political process.
Afghanistan was to fight our enemies, the same enemy that planned 9/11. It weakened the Taliban not to mention having other groups over powering them helped. Now, its ISIS which Americans are also helping if not driving them to impunity. Pending if you are a moderate or extremist Muslim, it can suggest that this is good or bad for you personally.
I personally oppose dictatorship and will support politicians that have the same goal. People should be not ruled by a single or a few.
Suggesting that its an endless conflict does not support no action. Results aren't measure in 0 or 100 percent, in black or white. They aren't measured in 1, 2, 5, or 10 years.
If that same notion of wasted time is applied to say, civil rights for minorities, sexes, sexual orientation here in the US, we would not see improvement for all.