US Defence Strategy Shift Sparks Concern Over Global Security Implications

January 25, 2026 • Al Jazeera

US Defence Strategy Shift Sparks Concern Over Global Security Implications

US Reveal New National Defense Strategy, Aligning with ‘America First’ Approach

The US Department of Defense has released a new national defense strategy, which is in line with the country’s “America First” approach. The strategy prioritizes homeland security and influence in the Western Hemisphere. This move comes as no surprise, given the ongoing debates between President Donald Trump’s administration and close allies about the US role in their defense.

The White House had previously released a National Security Strategy, which marked a significant shift from post-Cold War policies. A Pentagon Defense Strategy was also published this week, echoing the White House’s approach. The new strategy is rooted in the “America First” philosophy, focusing on domestic security and regional influence.

Experts have weighed in on the potential implications of the new strategy for US allies worldwide. Adam Clements, a US foreign policy analyst and former Pentagon official, has expressed concerns about the impact on international relations. Marina Miron, a researcher at King’s College London’s Defence Studies Department, notes that the strategy may lead to increased tensions with some countries.

Youngshik Bong, a visiting professor at Yonsei University and adviser to South Korea’s Ministry of National Defence, suggests that the new strategy could have significant effects on regional dynamics. The full extent of the fallout for US allies remains to be seen.

Source: Al Jazeera