Although the attempt to restore Estonian independence in September 1944 did not succeed, the Otto Tief Government proved to be an integral and indispensable part of the "de jure" continuity of the Republic of Estonia, upon which the current state rests. In February 2007, the Riigikogu decided to commemorate the actions of Tief's government by proclaiming 22 September to be the annual "Day of Resistance". 22 September 1944 is the day, several days after the departure of Nazi Germany's occupying forces, that the invading Red Army took over the administrative centre of Tallinn, tore down the Estonian national flag and replaced it with the Red Banner, the symbol of Soviet occupation.