Bussard-class cruiser was present in the Caribbean during the Spanish–American War in 1898, though she took no active role in the conflict. Between 1898 and 1900, "Bussard" and "Seeadler" were modernized in Germany. In 1900, "Seeadler" participated in the suppression of the Boxer Rebellion in China, including a blockade of the Chinese coast. In December 1902, "Falke" and the protected cruiser joined British forces in the Venezuela Crisis of 1902–03 after Venezuelan forces seized a British merchant ship. The two cruisers helped British warships bombard Venezuelan coastal fortifications and blockade the coast. "Cormoran" and "Geier" were modernized between 1907 and 1909; only
French cruiser Léon Gambetta which shortly led to them declaring war on Austria-Hungary. In spite of the growing threat from Austrian and now German U-boats in the Mediterranean, the armoured cruiser was patrolling unescorted at a reported on a clear, calm night just to the south of the Otranto Straits when she was torpedoed by the "U-5". "Léon Gambetta" sank in just 10 minutes. Out of 821 men on board, 684 including Rear Admiral Victor Baptistin Senes, commander of the 2nd Light Division, were lost along with all commissioned officers. There were 137 survivors. The French cruiser patrol line was moved South to the