"Also, there was no justification to invade Pakistan, while there was a damned good reason to invade Afghanistan in the first place"
There is always a good reason...Hitler invaded half of Europe WITH good reason, Stalin invaded Finland WITH good reason, Mussolini invaded Ethiopia WITH good reason, Genghis Khan invaded China WITH a good reason, Ceasar invaded Carthage WITH...you guess good reason...there is always GOOD reason to invade weaker countries and take their resources away. And that good reason is always the same, to protect innocent people, save them from their ruthless leaders or any other bullshit they will think off. So sure, USA did not invade Iraq, Afghanistan, Panama, Libya because of the oil, strategic position or Panama Chanel, they decided to spent million dollars to save people. Yea right....