 Complete the following phrase:  In 1917, Päts headed the provincial government of the Autonomous Governorate of Estonia, but was forced to go underground after the October Revolution. On 19 February 1918, Päts became one of the three members of the Estonian Salvation Committee that issued the Estonian Declaration of Independence on 24 February. Konstantin Päts headed the Estonian Provisional Government 19181919, although he was imprisoned during the second half of the German Occupation. In the provisional government, Päts also served as Minister of Internal Affairs 1918 and Minister of War 19181919 that left him organizing Estonian troops for the 