वैश्वीकरण परस्पर जुड़ाव और वस्तुओं एवं विचारों के सीमा पार प्रवाह को बढ़ावा देता है, तथा यह प्रत्यक्ष रूप से किसके विपरीत है?

Given below are two statements, one labeled as Assertion (A) and the other as Reason (R): Assertion (A): The terrorist attacks of September 11, 2001 (9/11) fundamentally impacted international security and reshaped US foreign policy. Reason (R): Globalization and modern technology have empowered non-state actors to wage asymmetric warfare across borders. Choose the correct option:

In which of his works did Kenneth Waltz construct the 'Levels of Analysis' framework for international relations?