'Soldier' in the Bible

Then the soldiers, when they had crucified Jesus, took his clothing and made four shares--for each soldier a share--and the tunic. (Now the tunic was seamless, woven from the top {in a single piece}.)

And when the angel who spoke to him departed, he summoned two of the household slaves and a devout soldier from those who attended him,

And when we entered into Rome, Paul was allowed to stay by himself with the soldier who was guarding him.

Who ever serves as a soldier at his own expense? Who plants a vineyard and does not eat the fruit of it? Who shepherds a flock and does not drink from the milk of the flock?

Suffer together with [me] as a good soldier of Christ Jesus.

No one who serves as a soldier is entangled in the activities of [everyday] life, so that he may please the one who enlisted [him].