[Suicide Junkie]

Possible high-level strategy issue:
Ukra tal have countered my invasion of their colony with a huge attack from the other side of the empire.

Three carriers and two destroyers.
However, the weapons being carried are 100% explosive missiles. An ungodly wave of missiles wiped out all my defenders, but the Ukra were unable to attack my colony itself.
I suppose I should expect a troop invasion soon.