Invasion Upgrade
How to get the invasion upgrade ?
Obtained by completing The Lone Conqueror medal. Invasion upgrade is a boost gained by successfully invading 15 planet while you're not a member of a legion.
What does it do ?
Each time you successfully invade a planet, a 50% production bonus is applied to this planet for 2 days.
--Butterfly3007 01:46, 18 August 2012 (UTC)