We don’t want another religious crusade for sure.
Hundreds of millions of Christians in the developing world are vulnerable to Islamic persecution and death right now. If the current conflicts we have are elevated to an openly religious war, Osama and company will be proven right, as they already see it as one...AND those hundreds of millions of Christians will suffer and get killed a lot more than they already are...
Besides that, Obama and the rest of the Western world’s leaders aren’t even Christians, as far as I can tell.
Are those Christians unwilling to defend their right to live, to fight, to survive? Usually but not always its the atheist or agnostics or the types like the Jehovahs Witnesses that won’t fight.
Most warriors that I know of through history are very christian.
Give them weapons then. Problem solved.