Here's my two pence worth - all Latin:
(Ultra)Acies : To battle
(Ultra)Altus : Tall, Deep
(Ultra)Annullo : to obliterate, destroy, annihilate
(Ultra)Torvus : Savage, fierce
(Ultra)Instruo : prepare, provide / draw up an order of battle
(Ultra)Procinctu : prepared or ready for battle
(Ultra)Imperium : power to command, authority, command, rule, control.
With or without the Ultra(?), or just 'U'.
Ratzz