I translated it this way:

Enses requirimus saevos nos,
nos ferrei reges servi fati,
morba ex terra, mortifera tela
in hostes bello ad moventes.
Equos frenamus furentes
Capita superba quatientes
mortem hostibus et luctem date
acrem dimanes sternadis.
Ave Nevis, ave ferrum, (Nevis is a tense of Nolo, or "Not")
Ave tela, ave cruor
Ave pugna, ave moritur.
Seculum!

[Swords we desire, we savage ones
We, the kings of Steel, slaves of Fate,
A plague out of the earth, weapons that cause death
In a host we fight to drive them out!
We rein in our maddened horses!
Their proud heads shake!
Kill the enemy and give them grief!
Quickly we move to mow them down!
Hail Nothingness! Hail Steel / Swords!
Hail Weapons / Spears! Hail Agony!
Hail Fighting! Hail Dying!
The spirit of this Age!]