- NATO summit took place in Warsaw last week
- Ian Brzezinski: Putin's strategy rests on determined modernization of Russia's armed forces
Ian Brzezinski is a senior fellow at the Atlantic Council's Brent Scowcroft Center on International Security. The views expressed are his own and based on testimony to the U.S. Senate Committee on Foreign Relations.
(CNN)Almost 70 years after it was created, the North Atlantic Treaty Organization is faced with a growing challenge, one that loomed large over the group's summit meeting last week: Russia's increasing assertiveness and military power.