Question about touring

I wanna know how bands decide which countries they are going to tour. Do they choose the ones they are 100% sure they are going to make profit or do agencys or promoters call them and invite them to play or what. I’m not really familiar with that so I wanna know. The reason I wanna know this is because I wanna see Avenged live one day but they’ve never been to my country (Croatia) and I noticed that there are a lot of contries in europe they haven’t played yet and I don’t wanna wait forever cause I might never see them. Is it because some countries just don’t have the market for it and it’s just not worth touring or what?
I guess the next time they play in Austria I’ll have to go see them cause it’s the closest thing to home

Yeah I think I’ll go see them the next time they are in Austria cause it’s like 2 hours away. As a kid I used to think that a band could tour any country they wanted and I hopelessly waited for a7x to come to my country but then I realised that maybe it’s not that simple. So the next time they are gonna be near I’m definitely going totocause see them cause I don’t wanna miss out