Marshall Mission Files, Lot 54–D270: Telegram
Mr. Walter S. Robertson to General Marshall
2947.… [I have been informed] that Communist troop movements were taking place in Jehol as necessary strategic military measures.…
… It is evident that orders have gone out from Yenan to field team members to block all investigation of Communist troop movements and this Headquarters … is powerless to do anything about it. It is now also clear why Chou En-lai refused to grant freedom of movement to field teams. The agreement signed on 14 May in deference to his representations and as a test of Communist good faith has already been rendered valueless for emergency situations.