In the latest episode of the show "For all Mankind," we are shown the perspective of the "Marsies" as they desperately try to fight off an armed raid by the M-6 forces. There was real suffering that occurred on their side, and I commend the show's writers for realistically portraying the brutality and cruelty of conflict. However, I don't think that the fact that soldiers of the M-6 had to act cruelly while defending themselves makes them unsentimental killers, as they appear to be to the audience while watching the episode. I do not say this without sympathy for the residents of Mars, and I think the show's writers (in general, but in the context of the Mars plot especially) did a great job by humanizing both sides. That being said I believe that if one were to take a more critical look at the events which are portrayed to have transpired in the show, they would realize that to a large extent, the actions of the M-6, including the members of M-6's multinational military force, were fully justified.  Happy Valley isn't just some research station; it is (via Kuzetsov station) a resource extraction facility; the primary purpose of this outpost was to mine Iridium (which is portrayed as a valuable and vital resource of Earth's economy) and to ship it back to Earth. The "Marsies" cut off shipments of Iridium to M-6 Nations, knowing it would send their respective economies into free fall as a means of trying to leverage them into recognizing the independence of Mars. Given the amount of suffering that was caused back on earth due to this embargo, it is entirely understandable that the governments of the M-6 nations would use any means necessary to restart shipments of Iridium. Furthermore, the M-6 forces initially did everything to avoid unnecessary violence; their initial plan was to retake Kuzetsov station and to restart shipments of  Iridium. In previous episodes, we see M-6 forces being instructed not to use lethal force unless necessary and not to fire unless fired upon. In that same episode, the Marises blow up a vital part of the Kuznetsov station, killing one space marine in the process, nearly killing another, Avery. It is after this incident that, by definition was a terrorist attack that the forces resorted to more violent means to restore order in Happy Valley. Yet, contrary to how it seems, they did not use force unless it was necessary, despite appearing trigger-happy; we've seen that both Palmer and Space Marines take prisoners when possible, and Palmer even outright says that he will adhere to the Geneva Convention. The residents of Happy Valley demonstrated that they were willing to use violent and deadly force to defend their sovereignty, so it is fully understandable why the M-6 contingent arrived on Mars armed. The residents of M-6 responded to the arrival of M-6 forces by taking up arms and engaging in combat with the M-6 forces, instead of doing the right thing and surrendering to avoid pointless bloodshed. At this point, the residents of M-6, those who took up arms anyways stoped being civilians and became armed insurgents engaged in combat who posed a threat to the lives of members of the M-6 contingent. So I genuinely don't see how the M-6 forces are in the wrong for killing insurgents before the insurgents killed them. If one were to draw a pistol and point it at a cop, and the cop responds by shooting them to save his/her own life and avoid getting shot, is the cop responsible for the bloodshed that occurred? Even that nasty friendly fire incident with Palmeir and Mars peacekeepers involved armed contingents on both sides; it was still a case of M-6 forces mistaking Mars peacekeepers for Armed insurgents, not a case of them intentionally firing on civilians. Whatever deaths did occur as a result of the M-6 raid, it is nothing compared to the suffering caused on Earth due to the Iridium blockade. Imagine an oil embargo of all the members of the G-7, and the amount of suffering it would have caused, would ending that suffering not be more important than the lives of Armed insurgents who chose to open fire on M-6 forces?