Work together because we feel obligated
A peace treaty that is old and dated
We took it for granted, said that we meant it
'We are your Allies, defend you against it'

Haven't been there lately, not in the picture
With the Purge an' the Treason in the mixture
There's stories to tell, we been through it all
Still your ally, you need only call

Written in two stanza Rictameter

Both the clans, separated by years
come together to end their fears

standing in unison avoiding extinction
by a dark lord's discretion

Both looking to end the conflict
their passions is their convict

now comes the calling to Arcona
to destroy the iron throne persona

Dark, swirling faces loom from the depths of space.
Our Allies consorting with such vile things,
A plague as their name base,
En-slavers of beings.

With millions of innocent souls erased without thought,
The Grand Master stands at high a greater villain.
Yet, morals question whether we ought
To cure the sickness with penicillin.

Wretched sins and diabloical dreams
Two clans of darkness, of death and life
Signed in blood, allied it seems
To fill the Brotherhood with strife.

Skies will burn and the dead will rise
Children will weep and families wither
Di Plagia and Tarenti will have their prize,
But is the alliance a mere whisper?

I am unclear if this requires a regular stanza poem or a haiku, I have provided both, with the stanza poem being my submission if the bit about a haiku wasn't making it required.

Haiku:
Cold fire within
Betrayer looms in shadows
Wrath not yet sated

Regular Stanza Poem:
It should have been expected, to trust and be betrayed
I should have seen it coming, but my mind was far too pained.
The selfish Dragon did as needed, for Arcona to be saved,
I understand but don't forgive, Krath's vengeance must be sated.