When the update goes live in Lord of Ultima, there will be one active Moongate on each active continent that is enlightened. When this happens, you will be able to attack targets with your land-based troops on any of the other continents where an active Moongate exists.
However, the troops you send through the Moongate to attack will receive a penalty based on the distance your troops must travel. On the other hand, defense support is not penalized. This new feature will really change up some strategies in the free-to-play strategy game, Lord of Ultima, so be ready for an attack from a distant enemy at any time!
Source: Game homepage