He was making IEDs for Taliban who were in a declared jihad against US. Who were also giving shelter to Al-Qaeda leadership. Taliban was responsible for the death of 8000 non-combatant deaths after they took Mazar-i-Sharif and Bamiyan.
There is no valour in his behavior (or the other fighters') since there was no acceptable outcome for them if they surrendered. They were brainwashed to fight to death. They are no better than a suicide bomber that triggers the explosive belt when caught. Valour is when you go beyond your duties to defend a position and/or save comrades. They achieved nothing (almost nothing: they killed Speers and injured others).