The new feature, the Lunar Battleground, is an entirely new way for players to go to battle against one another and after thorough testing by you, the players, InnoGames has launched this new feature.
Two teams with between 10 and 35 players each will fight in order to claim all of the Raw Heller ore on the Lunar Battleground. If you are already a part of a squad or legion, your fellow players will be able to automatically join up with you in these battles. In 15 minute rounds, you will have to claim as much of the ore as possible and hold it. After one team wins two rounds, the match is over. In addition to having the ore count as points, player kills count as points as well. This means not only do you have to use your tactics to hold the position, but you have to be ready to deal some damage as well.
Source: Game homepage