After filing out Greek paperwork online, our QR Code showed up in the email a few hours ago. That and the CDC Card should get us in tomorrow. Let's see.
Country 1 - Ukraine
https://community.ricksteves.com/travel-forum/general-europe/country-one-entering-ukraine
Country 2 - Turkey
https://community.ricksteves.com/travel-forum/general-europe/country-two-turkey
Country 3 - Croatia
https://community.ricksteves.com/travel-forum/general-europe/country-three-croatia
Country 4 - Bosnia & Herzegovina
https://community.ricksteves.com/travel-forum/general-europe/country-four-bosnia-herzegovina
Country 5 - Montenegro
https://community.ricksteves.com/travel-forum/general-europe/country-four-montenegro