"Report by the Commander of Armoured and Mechanized Forces of the Red Army
To the People's Commissar of Defense I.V. Stalin on the equipment of a heavy IS tank brigade
November 20th, 1944
I report that:
As per your orders, one heavy IS tank brigade with two regiments of 21 IS tanks each and one regiment of 21 ISU-122 will be ready by December 5th of this year.
There are 65 combat vehicles in the brigade in total.
There is a possibility of organizing 4 more tank brigades in December in order to obtain improved and reliable methods of combat against enemy heavy tanks.
This means that by January 1st, 1945, the Stavka is going to have 5 heavy IS tank brigades with 15 regiments in total in its reserve.
I ask for your decision on this matter
Commander of Armoured and Mechanized Forces of the Red Army, Marshal of the Armoured Forces, Ya. Fedorenko
Member of the Military Council, Colonel General of the Tank Forces, N. Biryukov