The Anglo-German Naval Agreement (A.G.N.A) of June 181935 was a bilateral agreement between the United Kingdom and Nazi Germany regulating the size of the Kriegsmarine in relation to the Royal Navy. The A.G.N.A fixed a ratio where the total tonnage of the Kriegsmarine was to be 35% of the total tonnage of the Royal Navy on a permanent basis.
See more at Wikipedia.org...