Rituals Pre- and post-battle

[Cyrus]

For a school progect i have to do some reserches on 2 topics: rituals pre-,during and post-battle for romans; same thing for greeks of classical age and I was hoping someone in here could please help me.
So if any of those experts out there could help i'd really appreciate it.
Also i would really enjoy an answer, since i posted the same request in an other post of mine but in 4-5 days i've had no answer relative to the matter.
P.S. i'm particularly intrested in the peana, i know it was a chant to inspire troops in honour to apollo but have no idea what it said.
P.P.S i kinda also need a map of roman expansion in the year 245.