Does it matter which country I am in to pursue this dive?
 
Probably not.  Wherever there is water, there you will likely also find SCUBA diving.  
 
Why ‘probably’?  Well, there are some countries that perhaps are completely land-locked, and completely dry.  It may be hard to find open water diving opportunities there.  
 
However… you can still go SCUBA diving in swimming pools!  And most training always starts in a swimming pool!  So, wherever you are, surely there is a swimming pool.  

The bigger question: is there SCUBA training, equipment, and instructors nearby?  For that, you’ll have to do some research.