HNLMS De Ruyter and De Zeven Provinciën were the last solitary cruisers armed with

guns in the world. They were used by the Royal Netherlands Navy and Peruan Navy.

The initial design, dating from 15 November 1937, was never realized.

After WWII, the ships were still under construction resulting a renewed design process.

De Ruyter was commissioned on 18 November 1953 and served mostly as ¿agship

of a task group. On 13 February 1972 De Ruyter was transferred to Peru as BAP

Almirante Grau and ...

The Van Amstel Class consists of six former U.S. Navy frigates that originally served as destroyer escorts for the Bostwick and Cannon classes. In 1950, these ships were loaned to the Royal Netherlands Navy as part of the Mutual Defense Assistance Program (MDAP). After more than a decade of service, they returned to the U.S. in 1967, where they were replaced by the more advanced Van Speijk class frigates.