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
Spanish cruiser Reina Mercedes forces hunting Cervera found his squadron there on the evening of 27 May 1898, and a 37-day blockade of the harbor ensued. During the blockade, "Reina Mercedes" traded blows with the American blockaders. On 3 June 1898, the U.S. Navy attempted to trap the Spanish ships in the harbor by sinking the collier in the entrance channel. Spanish shore batteries disabled "Merrimac", and she drifted up the channel toward the anchored Spanish warships; "Reina Mercedes", the armored cruiser , and the destroyer opened fire on "Merrimac" as well, and the collier soon sank in a position which did not block