AI War:Alert
AI planets can be alerted.
Condition
An AI planet is alerted when it is adjacent to a neutral or Human planet, when it has hostile military forces on it (not necessarily Human), when an adjacent planet has hostile military forces on it.
Non-Human hostile military units include the Devourer Golem, neutral and Human-allied Neinzul Roaming Enclaves, Human Marauders, etc.
Consequences
Alerted planets are displayed with a red glow on the galactic map (instead of a white glow). An alerted planet is more likely to receive Reinforcement.
Many effects triggers when a planet is alerted: a Dire Guardian Lair will awake, a Raid Engine will trigger, etc.
Strategy
When planning galactic conquest, players should take into account the number of planets they would alert. Planets with a high Mark would be reinforced with high Mark ships. The less alerted planets there is, the more concentrated the Reinforcements will be.
It's often a good strategy to alert many low-mark planets in order to keep the AI reinforcements scattered.