The invasion AI was improved in HoD, and further improved in the beta patch. Sadly it's still not very good, but the UK should at least try to contribute now and again.
I don't think there is a strait there?
Is this temporary? I think it would be better if it was made so the British actually learned to embrace the Navy (for once) rather than letting France control the seas without competition...
Ah, the new naval battles are really good so that is a shame. I suppose, if there is another Expansion, it should be entirely focused on wars and military, perhaps trying to increase the chance of the Crimean War and such too. Along with that could come some long awaited British Sprite packs and music packs too!
I also strongly dislike the idea of Britain being 'attached' to Mainland Europe. Seems to take its largest advantage away from it, and just 'feels' wrong. That's just me though.
Yes sometimes the UK does pull off some nice invasions of countries like Russia but it's just too inconsistent, it seems like the stronger the enemy the smaller the invasion force Britain sends will be, I've seen them dump multiple stacks into weak Russias then only 1 stack into France or Germany when their power is incredible, it's almost as though Britain wants its men to commit suicide in such invasions.
Currently I'm in the middle of a great war as the USA with Britain, Prussia, the German sub-states against France, Russia and Scandinavia and I've checked just now and found that the UK had 646,000 men in Ireland and only 81,000 others in London, England and after several decades of having under 10 ships they now have only 3.
Britain's AI really needs to understand how to rebuild its navy and a better strategy for land invasions of powerful countries so they can achieve more than the token gesture of having a few men on enemy soil for a month or less.