(c) (d) TOP SECRET The build-up in(a) above includes a strengthening of artillery support. In addition to the forces in (a) above the Chinese may have up to four armies and some armoured formations in reserve, located in Korea or Manchuria. Many reports stress that there are now not less than two and not more than four armoured divisions in Korea. Although we have no verification of this, we must accept the fact that the threat of armoured intervention is greater than it has been before. Air Forces.