27mm and HighCirrus
27mm, you might note also that regular troops plus mercenaries now total about 150,000 while the Soviets topped out their commitment at 115,000.
HighCirrus, for more input, you might want to follow M.K. Bhadrakumar's writings on the subject and there is also Col. Evgeny Khruschev's video blog at Russia Today.