Kickstarter https://www.kickstarter.com/projects/cmon/rivet-wars
English - Rivet Wars: Front de l'Est was funded on the Crowdfunding Kickstarter (See the campaign) platform on the Feb 4, 2013, the campaign lasted 31 days. 2,464 people helped funded the game, whose the amount requested was $25,000.00. Thanks to these 2,464 people the game could be funded up to $582,316.00, ~2,329.26%.
Boardgamegeek https://boardgamegeek.com/boardgameexpansion/165048/rivet-wars-battle-brighton
English - Rivet Wars: Battle of Brighton takes the fight to the sky. With this expansion players can field fighters, bombers, anti-air tanks and more. Bomb an enemy strongpoint, strafe attacking infantry or use your anti-air unit to shoot non-friendlies out of the sky. Use these flying machines to seize the upper hand and win the day!