I've done all in this series and from memory, you are yet to merge Hispaniola. A good trick to do would be to merge Hungary and Ukraine, Burundi and Rwanda. But the ultimate troll would be to do Azerbaijan and Turkey.
If it were Vatican and Italy, San Marino and Italy, France and Monaco, Spain and Andorra, Malaysia and Singapore or Malaysia and Brunei it would be very troll (I did not include in this comment the countries that were already told that if they were together it would be very troll ). Nevermind...
@IsleAuHaulte Imagine someone having the idea to truely merge Russia and Ukraine currently. That would be completely crazy and terrific, but hopefully it will never happen. Wait...
Italy/Vatican, Italy/San Marino, Luxembourg/France, Liechtenstein/Switzerland, France/Monaco and Andorra/Spain would all make impossible ones. But for bigger countries, you can try Norway/Russia, South Africa/Lesotho, Brunei/Malaysia, Myanmar/Bangladesh or Eritrea/Djibouti.
According to Wikipedia, yes, it would be, and it wouldn't be that close. Even if both Quebec and Texas left, the US of Canada would still be bigger than Russia. Even without Alaska, it would be bigger (though if Alaska returned to Russia, then Russia would be bigger).
Canada and the U.S. as one will have to do.
Support to Ukraine.
WolfyIQ
India/Sri Lanka
UK(Gibraltar)/Spain
Morocco/Spain
Liechtenstein/Switzerland
vatican city italy
andorra spain
Andorra: Why am I still here?