query to get the location based country and restrict the country based on the region

Summary:

query to get the location based country and restrict the country based on the region

Content (please ensure you mask any confidential information):

For ex Region is EMEA, Country menu should display based on the EMEA region and those country is based on employee location country

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):