The Budapest Memorandum (Ukraine’s security assurances after nuclear disarmament)
Ukraine gave up the world’s third-largest nuclear arsenal and received security assurances from Russia, the U.S., and the U.K. The document offered political commitments, not an automatic military response.
Ukraine traded deterrence for promises and international integration.
Russia violated the assurances; the episode became a warning about unenforced guarantees.
It’s the ghost at the Berlin table: Kyiv wants “binding” because “assurances” failed.
