This document provides background on globalization and trade liberalization. It discusses how globalization has led to changes like the spread of technology and standardized economic rules. It also examines criticisms of globalization from the anti-globalization movement and concerns that its benefits are not evenly distributed. The document then focuses on trade liberalization as a key driver of globalization, outlining the traditional arguments for its economic and political benefits, the evolution of the multilateral trading system, and its founding principles of transparency, non-discrimination, and peaceful dispute resolution.