They dont carry weapons do they? The thing thats 'army' about them is they wear a uniform and call each other by army names like sergeant and lietenant etc. Maybe the cult like thing about them is they have a ranking like that. Their magazine is called 'war cry' which, I think means when theres war, people cry. But it might just mean the trumpet blast or referr to their brass bands.
Theres also the peace corp, run by americans, which is kind of on similar lines but is entriely secular and meant to promote american goodwill.
in nz we have something called VSA which is Volunteer Service Abroad.
People can come to gether and do good things, not just come together and do evil things. Dont join a gang, join Jesus church.
I also found people can get confused and join wordly false churches which go on 'crusades' and spread intolerance, fighting anyone who doesnt believe in the exact doctrine they do, which turns out to be man made. Some churches are very militant in their expression, as if to suggest that the enemy is someone to be hated, instesd of what Jesus said, to love your enemies. Even when they persecute you.
This is how Paul got to be put in prison, beaten , shipwrecked, stoned, yet he just kept boasting about his infirmities and how God delivered him and Jesus saved him. After that day on the road to Damascus Paul eschewed violence. He said he would treat others just as a nurse treats a child, with gentleness.