You must have heard about the ratification process of LT. At the time of the writing, most countries 26 out of 28, the Irish included (they had a second go and said OK), had approved=ratified the treaty. Italy is just depositing the documents, so we have one and only remaining country. (Now, there is some talk about Åland, but let’s keep it out of business, no pun intended).
The last one is the Czech Republic. Can you now use the best of your imagination, and tell us all, what is the real reason?