How change default country

hi,

how can I change the default country from USA to some other in the join form?

Go to admin>advanced settings>Index Page Settings.  Delete US and input the country you want.

That changes the default country on the index page. I want the change in the join.php.

You need to do that in the Fields builder, choose the join -the block and go the advanged tab. There change the default country

Thank you.

I want to change default country in the module Events (Add Events). There is Burundi default country. How can I change it?