I agree. And building alliances and winning the propaganda war is also important. Too many sympathize with Putin because they seem to think that mindless wielding force is an admirable trait. There is such a thing as a Just War theory, which Putin’s aggressions do not meet. And finally, decent people are appalled when teenagers attack an old man or old women with sucker punches. To me, that type of savage violence is his moral equivalence.
Lithuania would be foolish to join the EU. They will be put into the constraints of the EU without the protection.
Better to go at it alone or align yourselves economically with countries like India and Israel.