
Global defence spending reached $2.63 trillion in 2025, a 2.5% year‑on‑year increase driven by heightened great‑power rivalry. The United States shifted its strategy toward homeland defence and burden‑sharing, proposing a multi‑layered “Golden Dome” missile shield while scaling back direct aid to Ukraine. Russia’s military budget grew 3% in real terms, now representing 7.3% of GDP and roughly triple its 2021 level. Europe’s share climbed to 21% of global spend, and China captured almost 44% of regional expenditure, expanding its navy faster than the United States.
The IISS’s latest Military Balance highlights a fundamental shift in global security spending, with total defence outlays surpassing $2.6 trillion. This growth is not merely inflationary; it reflects a strategic response to intensified competition among the United States, China, and Russia. Policymakers are allocating larger portions of national budgets to modernise forces, invest in missile defence, and sustain overseas commitments, creating a fertile environment for defence contractors and technology innovators seeking to meet evolving requirements.
In Washington, the pivot toward a "Golden Dome" missile‑defence architecture signals a broader re‑orientation toward protecting the homeland and encouraging allies to share the burden. The reduction in direct Ukrainian assistance, coupled with simultaneous pressure points in the Caribbean, Indo‑Pacific, and Middle East, forces NATO partners to reassess their own defence postures. This strategic recalibration is likely to spur demand for integrated air‑and‑space solutions, cyber‑resilience platforms, and next‑generation interceptor systems, reshaping procurement priorities across the alliance.
Regionally, Europe’s rising share of global spend—now 21%—highlights renewed emphasis on collective security, yet sluggish procurement reforms and industrial capacity constraints threaten to blunt modernization efforts. Meanwhile, China’s near‑44% dominance of Asian defence budgets, marked by rapid carrier and submarine construction, intensifies maritime competition and pressures neighboring states to upgrade their own fleets. Russia’s sustained 7.3% of GDP allocation, despite heavy losses in Ukraine, underscores a commitment to maintaining a credible deterrent. These dynamics collectively drive a more competitive defence market, encouraging innovation while amplifying geopolitical risk for investors and policymakers alike.
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