It is wrong to use child soldiers
The world was shocked by a trending video of a young boy being used to execute some held captives.
Judging by the child's physical features, the child appears to be barely ten years but the way he calmly aims and shoots several times is enough indication that his childhood and innocence was lost a long time ago.
Adults will always have issues with each other without going to the merits of such disagreements. But to suck children who should be enjoying their childhood and forming their understanding of life to your conflicts is totally acceptable.
Ten year old kid have no understanding of the complexity of life and will only behave out of aping rather than rational thinking. They may do what you ask them to do and they may even like it but that would only be a pointer to their unformed judgmental capacities rather than their loyalty to certain doctrines.
Children have their basic rights an one of them is not to expose them to such levels of violence.