Political fallout looms as Trump weaponizes military presence against allies. Merz’s Iran remarks drew accusations of undermining U.S. foreign policy, but critics argue the U.S. benefits from German cooperation. Withdrawal risks disrupting NATO cohesion and straining bilateral ties.

Germany’s €100 billion defense investment since 2022 includes advanced missile systems and cyber capabilities, reducing reliance on U.S. security guarantees. Analysts note the move reflects broader European fatigue with U.S. military dominance. A troop pullout could force Washington to justify its European footprint amid rising Chinese competition.