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How did the growth of Germany’s navy contribute to the formation of the Triple Entente?

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Kaiser Wilhelm II of Germany in military uniform, wearing a fur hat with a prominent skull emblem and various medals and decorations on his chest. — Wilhelm II Wilhelm II, the last German emperor.

The growth of Germany’s navy under Wilhelm II and his naval adviser, Alfred von Tirpitz, was a primary catalyst for the formation of the Triple Entente.

By the late 1890s, Germany shifted toward Weltpolitik ("world policy"), seeking to transform itself into a global power. A central component of this ambition was the construction of a massive "risk fleet" capable of challenging the Royal Navy. Because Britain relied heavily on sea-based imports for its survival, this naval expansion was perceived as an existential threat.1234

This German behavior effectively ended Britain’s policy of "splendid isolation." Feeling menaced in its home waters, Britain sought to reduce its potential opponents by settling colonial disputes with its rivals. This led to the Entente Cordiale with France in 1904 and the Anglo-Russian Convention in 1907. While these agreements were not originally conceived as a formal anti-German alliance, the escalating naval race solidified them into the Triple Entente, leaving Germany feeling encircled by three major powers.341