The international institutional structure has remained largely static since the mid-20th century rather than evolving with the changing power realities and challenges. Reforming and restructuring the international system poses the single biggest challenge to preserving global peace, stability and continued economic growth. A 21st-century world cannot remain indefinitely saddled with 20th-century institutions and rules.
Power shifts are an ongoing phenomenon in history. The global power structure continually evolves. Although the focus currently is on the post-Cold War power changes, the Cold War era itself witnessed important shifts.
For example, it was only after the Cold War began that the Soviet Union rose as a global military power, although it failed to become a true economic power. By the second half of the Cold War, Japan and Germany emerged from the ruins of World War II as formidable economic giants. And in keeping with the profound technological and geopolitical changes since the late 1980s, power shifts have become even more pronounced, as underscored by the gradual rise of the East since the 1990s.
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