If the payer only lists the source as "various" and the countries cannot be identified, then all you can do is use "various" and treat the 2 as one. With regard to the UK, it does not withhold taxes to US taxpayers. Technically you would enter it in a separate column only to indicate the income from the UK but with no taxes withheld. This would require creating a 2nd fictitious 1099-div which is time consuming. I would just include it with the "various" for income purposes. Thus you will end up with only one column in the f1116.
