 Complete the following phrase:  The Azopardo-class frigates were a class of two post-World War II warships, designed and built in Argentina in 1940-1959, originally as part of a class of four large minelayers see Murature-class ships. They were in service with the Argentine Navy from the mid-1950s to 1972. The class was named after Juan Bautista Azopardo, an Argentine naval officer in the 