When we reviewed Earth Defense Force: World Brothers, the recent EDF spin-off from Yuke’s and D3 Publisher, we mostly had a great online co-op experience. The Steam version of the game, however, inexplicably suffered from region-locked lobbies. Workarounds will no longer be necessary when playing with folks from other places, thankfully, because the region locking has now been fixed!
Source: N4G PC Steam Version of 'Earth Defense Force: World Brothers' Ditches Region Locking