Twenty-five years after 9/11, global security shifts continue transforming energy and markets.

Australia invoked the ANZUS treaty for the first and only time after the attacks. The subsequent Bali bombings, which killed 202 people including 88 Australians, brought the terrorist threat directly home and reshaped Australia’s national-security system.
The post-9/11 response included the USA PATRIOT Act, expanded intelligence and law-enforcement authorities, and broader integration of domestic intelligence capabilities across government agencies in both the United States and Australia.
Fifteen of the 19 hijackers were Saudi nationals, intensifying criticism of Washington’s relationship with Saudi Arabia even as the wars in Afghanistan and Iraq underscored the strategic risks surrounding the Middle East’s oil-producing region.
The United States produced a record 13.6 million barrels of crude oil per day in 2025; its net oil imports had fallen from nearly 11 million barrels per day in 2001 to net exports of about 2.85 million barrels per day, while Gulf states supplied roughly 8% of U.S. oil imports.
China used the period of intense U.S. focus on Middle Eastern conflicts to expand manufacturing, integrate into the World Trade Organization and develop export-led supply chains; estimates cited in the article put total U.S. spending on those conflicts at more than $8 trillion.
Twenty-five years after September 11, the attacks transformed American security policy, energy independence, and global competition. The U.S. response triggered a decades-long War on Terror, expanded surveillance powers, and a strategic focus on the Middle East that News Herald says reshaped markets and government spending for years. Yet this intense focus may have inadvertently allowed China to expand manufacturing and supply-chain influence while the U.S. spent over $8 trillion on Middle Eastern conflicts.
The attacks also fundamentally shifted how America views Middle Eastern oil — from an economic concern to a national-security priority. The U.S. has since become the world's leading oil producer, reaching a record 13.6 million barrels per day in 2025 and achieving net exports of 2.85 million barrels daily, down from net imports of 11 million barrels in 2001.
After 9/11, Australia invoked the ANZUS treaty — the only time it has ever done so. The alliance commitment tied Canberra directly to American counterterrorism operations. But the threat became personal when the 2002 Bali bombings killed 202 people, including 88 Australians, bringing terrorism home and forcing a major overhaul of Australia's national-security system.
Both America and Australia dramatically expanded intelligence and law-enforcement powers in 9/11's aftermath. The USA PATRIOT Act gave federal agencies sweeping new authorities Daily Press notes were part of broader efforts to reshape how government agencies share domestic intelligence. Integration between intelligence services deepened, blurring traditional lines between foreign and domestic surveillance.
Fifteen of the 19 hijackers were Saudi nationals, creating lasting tension in the U.S.-Saudi relationship. Yet Washington pursued wars in Afghanistan and Iraq despite Iraq having no role in the attacks, according to McCalls, intensifying debate over Middle Eastern strategy. The decision highlighted Washington's strategic vulnerability in a region where most major oil reserves sit.
While the U.S. focused military and political resources on counterterrorism, Daily Breeze reports China joined the World Trade Organization and aggressively expanded manufacturing and export-led supply chains. Two decades of American attention to the Middle East gave Beijing room to integrate deeply into global commerce. Today, that shift in competitive advantage poses one of 9/11's most consequential long-term effects.
The U.S. oil independence achievement masks this strategic cost. America now produces most of its own oil, with the Gulf supplying only 8% of imports compared to heavy dependence in 2001. Yet Pottstown Mercury notes that global prices remain vulnerable to Gulf disruptions, and the $8 trillion spent on Middle Eastern wars represented capital unavailable for infrastructure, education, or competition with rising powers.
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