The four-power control of Vienna lasted until the Austrian State Treaty was signed in May 1955.
In 1955 the state treaty between the allies and Austria was signed in Vienna's Belvedere.
In 1955 the state treaty between the allies and Austria was signed in Vienna's Belvedere.
이 단락을 단순화: The four-power control of Vienna lasted until the Austrian State Treaty was signed in May 1955. 산출: