Should I create a new cover letter for each position?

Good Morning,

I'm wondering what information the prospective employers see once I appy to a position?  Will they see my profile as I see it? More specifically, should I write an individual cover letter for each position or will the employers expect a general cover letter.  I am also asking this because I would like to apply to different conutries and I don't want a position in Mexico to read a cover letter for UAE.


I look forward to hearing from you