i like your videos and hope you make more but i have 2 suggestions. 1. you can show the world news and any wars that are going on. 2. you can maybe revive so Empires like forming the Japanese empire or something. i just think it would be cool to watch your videos with these features.
I don't sure what time do you ask in video, but I will give name 0:00 - 0:13 - Countryballs at War Winter theme But If you mean after this, that is Russian Empire national anthem
Go to war with Russian empire and scroll to the enemy side and you can see a Russian empire countryball walking around. But make sure not to start the or it will not work