@Mn-guy As your question is neither about the website nor the forum itself I have moved your topic to the A&A Classic Forum Category,
Is Eire and United Kingdom adjacent by land …
No.
… or you need a transport between the two?
Yes.
Basically my T1 for Russia is the same as yours mind a few exceptions. First I don’t place any inf. in the Caucasus. Why? Because Germany probably has better things to do with it’s inf like support N. Africa. Plus if Germany decides to I can just counterattack next turn, stripping German of 3-6 IPCs.
Second, I don’t use my planes on the attack on Ukraine. The inf. and ARM should be enough. Instead I use the Yaks to wipe out Germany’s trans and sub in the Baltic Sea and save my Russian sub and trans to help absorb hits when the Luftwaffe strikes against the British fleet.