BRUSSELS, May 12 – NATO could help Ukraine to strengthen its defense reforms and the protection of critical infrastructure, and NATO's greatest responsibility is to protect and defend the populations and territories of its members, NATO Secretary General Anders Fogh Rasmussen said in Poland on May 8.

"And we have sent an unmistakable message to Russia: your behavior does not belong in the 21st century. And your rhetoric draws on obscure cliches of the Cold War," he said at a joint press conference with Polish Minister of Foreign Affairs, Radoslaw Sikorski and Minister of Defense Tomasz Siemoniak.