Exactly - which leaves us in a situation, doesn't it?
Will you cancel if it transpires that you'll need visas? - or will you try to work illegally?
As one of our party has global commitments with another act as his 'day job' , we will never pursue the illegal working thing.
We've met many European bands who have worked illegally in USA but when we went we did everything legally, at great expense too.
The idea that we'd have to get visa'd up for every EU gig means we'll probably never gig again.