In relation to the previously uncovered country of Rep of Ireland (and N. Ireland), I know it has been addressed upthread, but I am renting through AutoEurope and they specifically state on their website that proof of insurance (CDW) specifically in Ireland is required to pick up a rental car (not 100% sure this is still the case, but still...). Called and got many redirects until I was sent to www.eclaimsline.com. On that site I input my info and the dates I will be traveling and that it will be int'l travel. It sent me a letter that specifically states "This includes the previously excluded countries of Republic of Ireland, Northern Ireland, Israel and Jamaica."

For future travel, it should be much easier to just go to the eclaimsline website directly without having to call anyone.