An item reported that on 6 July 1955 on the Danube off Carnavoda, Romania three Romanian river monitors and several smaller vessels were exercising.
Source
The report was published on www.archive.org, document number CIA-RDP80-00810A008000610003-6
Source
The report was published on www.archive.org, document number CIA-RDP80-00810A008000610003-6