'Fellow soldier' in the Bible

But I considered it necessary to send to you Epaphroditus, my brother, fellow-worker and fellow-soldier, and your messenger [to me] and minister to my needs.

and to Apphia our sister [Note: This was probably Philemon's wife], and to Archippus our fellow-soldier [Note: This was probably Philemon's preacher son. See Col. 4:17] and to the church [that meets] in your house.