In June 1935, Germany signed the Anglo-German Naval Agreement, which allowed Germany to build battleships at a ratio of 35 percent to the total tonnage of the Royal Navy;[10] this granted Germany effective parity with France, at least in terms of allotted tonnage.[11] It also made Germany party to the international treaty system begun at the Washington Conference.[2] By this time, the only significant issue to be settled was the propulsion system, which was largely dependent on strategic questions.