The Archbishop of York said that the six soldiers killed in Afghanistan were doing a "very important job" and that troops should not be pulled out of the war early.
Dr John Sentamu said: "People should go back and remember Britain did not go in there because it decided.
"This was a unanimous vote and mandate that al Qaeda had to be disrupted, that the Taliban were actually treating their women very badly and that you could create towards peace and the only way was actually to go in and disrupt al Qaeda.
"I want to believe myself we've done a lot of disruption in the fact that Osama Bin Laden is no longer posing the same threat now.
"It seems to me that the British soldiers, who in my book are the best, were doing it not just for the UK, people must remember this - they were doing it for the global village."
Hundreds of people filled Halifax Minster in Yorkshire to pay their respects to the six soldiers killed in Afghanistan earlier this week.
The Archbishop of York has offered his prayers to the military families mourning their loss this week.
The family of Sgt Nigel Coupe have paid a moving tribute to the highest ranking of the six British soldiers killed by a Taliban bomb.