The number of treaty powers had climbed to a maximum of 19 by 1918 but was down to 14 by the 1930s: the United Kingdom, the United States, Japan, France, Italy, Norway, Sweden, Denmark, the Netherlands, Spain, Portugal, Peru, Mexico, and Switzerland. Germany and Austria-Hungary lost their treaty rights after WWI, and Russia gave up her rights as a matter of political expediency. Belgium was declared by China to have lost her rights in 1927. Furthermore, the Chinese government adamantly refused to grant treaty power status to any of the new nations born in the wake of WWI, such as Austria and Hungary (formerly Austria-Hungary), Poland, Czechoslovakia, Yugoslavia, the Baltic States and Finland.