This has already been discussed (previous page) & the talk is regarding
Merkava 2s & 3s, not 4s, going to an
unnamed European country.
That country could be any of a number that have supported Ukraine, or others which haven't, or even Ukraine itself.
However, I'd be less inclined to think it's Ukraine because Israel has gone out of its way
not to antagonise Russia, at the moment, because of its close ties with the current ruling regime in Syria.
Still, from my perspective, no matter which way it goes, a Ukrainian
Merkava IV is
still a whif!