Marco Rubio also criticized the military potential of the US's European NATO allies, namely its erosionWASHINGTON, January 28. /TASS/. Security guarantees to Kiev would mean the direct involvement of the United States and the West as a whole in a new conflict in Ukraine if one were to start, US Secretary of State and National Security Advisor Marco Rubio said. "But every notion of security guarantees that's been talked about and that the Europeans have pushed is one that requires a strong commitment by the United States as a backstop, which you know, in essence, means we would be committed...