How did the naval arms race contribute to tensions before World War I?

The naval arms race between Great Britain and Germany significantly heightened pre-World War I tensions by fostering mutual suspicion and fueling a sense of encirclement.1

The competition was driven by Germany’s desire to build a "risk fleet" (Risikoflotte)—a naval force intended to deter potential attackers and assert Germany's status as a great power. Initiated by the Navy Laws of 1898 and 1900 under Alfred von Tirpitz, this buildup aimed to challenge British maritime dominance.23

The tension escalated dramatically in 1906 with the launch of HMS Dreadnought, a revolutionary battleship that rendered existing fleets obsolete. While Britain sought to maintain its lead, Germany responded by expanding its own construction and enlarging the Kiel Canal to accommodate larger vessels.41

For Britain, dependent on sea-borne imports, this German expansion was perceived as a direct threat to its security, leading to the belief that Germany aimed to "push us into the water and steal our clothes". Consequently, the naval race pushed Britain closer to France and Russia, solidifying the Triple Entente and leaving German leaders feeling dangerously encircled.1