Jannah said
Ukraine wasn't annexed. Crimea wasn't either. It's majority ethnic Russian and actually was Russian territory up until Khrushchev gave it to what was the Ukrainian SSR.Also, Liechtenstein is a poor example since it's surrounded by one of the most neutral countries in the world, Switzerland.
It is not surrounded by Switzerland. It borders Austria as well.
Austria in the past has been demonstrably non-neutral. So, please justify your point with rationale, facts, or something that amounts to more than, "because I believe it to be so." That point being that; any country without a military, will be invaded and conquered by a neighbor, with no more reason than because it can, in this modern age.