NATO's Burden-Sharing Milestone: A Long-Overdue Shift Toward Strategic Balance

For the first time in NATO's 75-year history, all 32 member nations achieved the 2% GDP defense spending target in 2025. This milestone, announced by the NATO Secretary-General, represents a fundamental shift in transatlantic burden-sharing that American conservatives and realists have demanded for decades. While the achievement deserves recognition, it must be understood as a starting point rather than a destination—and as validation of a harder-edged U.S. approach to alliance management.

The 2% target, established at the 2014 Wales Summit following Russia's annexation of Crimea, was honored more in the breach than the observance for years. As recently as 2020, only nine allies met this threshold. American taxpayers, meanwhile, consistently shouldered 70% of NATO's collective defense spending while protecting allies who allocated their savings to generous social programs. This arrangement was never sustainable, nor was it consistent with conservative principles of reciprocity and self-reliance in international relations.

The transformation occurred under sustained U.S. pressure. The threat of reduced American commitment—dismissed by establishment voices as reckless—proved the most effective tool for encouraging European self-defense capacity. When European capitals faced the prospect of American strategic retrenchment, they discovered resources they previously claimed were unavailable. This validates the realist insight that allies respond to pressure, not merely to shared values or multilateral consensus.

The achievement merits measured optimism. Germany, long NATO's most prominent free-rider, reversed decades of underinvestment. Eastern European allies, facing direct Russian threats, maintained defense spending well above 2%. Even traditionally neutral states like Sweden, now inside the alliance, are meeting their obligations. This is not rhetoric—it represents actual budget reallocations, procurement programs, and growing military capabilities across Europe.

Yet conservative realists must maintain analytical rigor. First, the 2% target, while symbolically important, remains insufficient for meaningful European strategic autonomy. NATO officials are already discussing a 5% target by 2035, with senior military leaders like Admiral Giuseppe Cavo Dragone of Italy's defense staff endorsing higher thresholds. This acknowledgment that 2% was never adequate underscores how far European allies fell behind during the post-Cold War "peace dividend" years.

Second, spending must translate into capability, not merely satisfy accounting targets. Some allies pad their defense budgets with items tangentially related to security while failing to address critical gaps in ammunition stockpiles, air defense, or logistics. The measure of burden-sharing is not budget line items but deployable, interoperable military power that can actually deter adversaries or fight wars if deterrence fails.

Third, this development should inform American strategic posture going forward. The United States maintains approximately 100,000 troops in Europe, operates permanent bases across the continent, and provides the nuclear umbrella and advanced capabilities that European allies cannot replicate. Now that European allies demonstrate capacity to fund their own defense, American policy should pursue further rebalancing—not abandoning allies, but right-sizing U.S. commitments to reflect European burden-sharing.

Conservative realism recognizes that alliances serve national interest, not abstract ideals. NATO's value to the United States lies in preventing hostile hegemony in Europe, maintaining forward defense positions, and sharing security burdens with capable, willing partners. When allies fail to contribute proportionally, the alliance becomes a liability rather than an asset—a subsidy program masquerading as mutual defense.

The current trajectory should continue. Washington should welcome the 2% achievement while pressing for the capability improvements and higher targets now under discussion. American officials should resist European entreaties to expand NATO commitments or extend security guarantees to new frontier regions while European allies still lack the capacity to defend existing treaty obligations without overwhelming U.S. support.

This represents successful alliance management through strategic pressure rather than reflexive accommodation. The lesson extends beyond NATO to other American alliance commitments in Asia and elsewhere: partners respond to credible American willingness to rebalance or withdraw, not to perpetual guarantees of protection regardless of their contributions.

NATO's burden-sharing milestone proves that European allies can fund robust defense when Washington demonstrates resolve. The next phase requires converting spending into capability, pursuing higher targets, and enabling gradual American strategic reallocation toward more pressing theaters. Fair burden-sharing strengthens alliances; dependency weakens them. After 75 years, NATO is finally learning this conservative realist truth.