At the Lisbon summit, NATO leaders pledged to adapt what they called the world's most successful political-military alliance to confront the 21st-century security challenges.

Analysts say Washington hopes NATO will continue to evolve to protect its members from new threats like ballistic missiles and cyber attacks, by preserving and developing essential defense capabilities.

The United States values the military bloc's role as the world's only institution capable of rapid and effective multilateral military action.

Questions:

1. Where did NATO just have a meeting?

2. What measures were adopted?

3. What is Smart Defense?

Answers:

1. Chicago.

2. Smart Defense approach and an initial step to establish NATO's missile defense system.

3. It calls for pooling resources and capabilities of member states to maintain and develop capabilities needed to confront the complex challenges of the 21st century.

About the broadcaster:

Nelly Min is an editor at China Daily with more than 10 years of experience as a newspaper editor and photographer. She has worked at major newspapers in the U.S., including the Los Angeles Times and the Detroit Free Press. She is also fluent in Korean.

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