User blog comment:KatDWolf/Relationships/@comment-1271618-20100511223726

Well, to explain the Liechtenstein relations with Czechoslovakia, from what I've read up on:

Towards the end of WWII, Czechoslovakia and Poland seized a good deal of lands and buildings of the Liechtenstein dynasty, especially their castles. This definitely did not sit well at all. From what I'm reading, Liechtensteiners were forbidden to travel to Czechoslovakia during the Cold War period and there was a lawsuit filed about the whole thing too at some point to Germany. Liechtenstein and Czechoslovakia mutually did not recognize each other, and this extended to the Czech Republic and Slovakia after the split too. Liechtenstein also claims restitution for lands taken at the end of WWI as well.

It seems like things are slowly progressing though, since last year Liechtenstein and Czech Republic established relations, followed by Liechtenstein recognizing Slovakia by the end of it.

It would be rather interesting to see how this would be in Hetalia-terms, especially with what Czech and Slovakia would be like too. Slovakia wouldn't get along very well with Hungary either.