@Nive G 

update as this

var gr = new GlideRecord('sn_hr_core_profile');

gr.addQuery('user',vaInputs.user.sys_id);

gr.query();

if(gr.next()) {

	var location = gr.country_of_birth.getDisplayValue();

	vaVars.location = location;
}

})()

then in decision use the exact country name to match in IF

if(vaVars.location=='United States of America'){
	return true;
}
else{
	return false;
}

If my response helped please mark it correct and close the thread so that it benefits future readers.