 Complete the following phrase:  After the proclamation of the Peoples Republic of Bulgaria in 1946, the celebration of the holiday on 6 May was stopped. The date of 9 September became the national day of Bulgaria under communist rule commemorating the 1944 Bulgarian coup détat and was adopted as a holiday of the army. A year later, the first festive military parade was held on the occasion of the holiday. In 1953, 23 September was designated as the Day of the Bulgarian Peoples Army. Its significance lies in it being the day of the staging of the 