The goal

What exactly is the goal of the Afghan war and the Iraq war? It is often stated that this is to control terrorism. and why does this war strategy work? The leaders never explained this to us clearly, have they? And if the goal is something different do the soldiers know about it so that they may know what they need to do? At least the soldiers need to know the truth. It appears like the leaders are playing with people's lives hoping that the goal finds itself. Perhaps some countries like to show their bullying capabilities but whats the point? The Bullying mode is short term and needs to be switched off. Its all in bad taste.