There are many different forms of Christianity (each of which considers itself to be the best, and only true form). So, the answer for a Roman Catholic, for a Southern Baptist, or for a Mennonite, all of whom consider themselves to be Christians, will be different. Even beyond that, it would be a mistake to think that all forms of military involvement are the same and that they all require the same response from Christians or from anyone else. Some causes are more just than others.
According to the New Testament, Christians should have no fellowship with secret societies and the unfruitful works of darkness, but rather should expose them. (Ephesians 5:11-12)
Everyone should play it, not just christians.
Catholics are Christians.
Christians are saints. Saints are Christians.
National political leaders have the most serious external issue with regards to national defense. At all costs their nation must be able to be secure from external threats. National leaders and their military leaders and consultants should constantly meet and make sound decisions concerning national defense.
All Christians -- and all people -- should be against war. But there are some denominations that are against being in the military. They include: Jehovah's Witnesses and Conservative Mennonites.
For involvement of another country is always a federal concern
They should be submissive to God.
The Celtic people are a race, not a religion. Most modern Celtic people ARE christians.
Martin Luther said that the Bible should be the only guide for Christians.
No christians should not wear , the skull and crossbones as they are the sign of the pirates. robbers at sea.
National political leaders have the most serious external issue with regards to national defense. At all costs their nation must be able to be secure from external threats. National leaders and their military leaders and consultants should constantly meet and make sound decisions concerning national defense.