Not “some truth”, but “all truth”. The USA war machine only cares about profit and keeping other countries under their boots, no matter how many children have to die.
I would agree most things are subjective (there is a limited degree of objectiveness like two planes hit two towers). That said, care to explain what else US troops are fighting for?
Also objective: The so called "war on terror" actually led to way more terror and helped the larges terror organizations to grow and gain power and weapons.
Subjective thoughts about that: They knew and they wanted this to happen. The goal was never to fight terrorism, the goal was having some kind of long-term rival to justify constant war, to give billions of dollars to arms industry, to keep undifferentiated nationalism as high as possible, to distract the masses from their economical exploitation, to have a fake reason to overthrow governments (actual reasons being economic and imperialist of course), to keep undemocratic "exceptional" rules in place, etc. etc.
I mean, the US troops do provide a lot of aid around the world. They do more than fight. You can argue an imbalance, sure. And it's also clear they can bring some measure of stability with their presence as we've seen what can happen the moment they're removed.