I am travelling to USA via Frankfurt and have a valid US Visa.
Lufthansa"s online API form asks for visa details such as visa number, date of issue, etc, etc.
Also asked is "Issuing country" and there is a drop down menu listing all countries.
My US visa was issued by the US Consulate in Mumbai, India.
What do I enter as "issuing country" ? USA or India ?

A bit confused about this - any help will be appreciated.