“Chief Section L; for chiefs only; written by General Staff officer; top secret; note on progress of report; Berlin, 24 August 1938; access only through officer; 1 copy.
“Timing of the X-Order and the Question of Advance Measures.
“The Luftwaffe’s endeavor to take the enemy air forces by surprise at their peacetime airports justifiably leads them to oppose measures taken in advance of the X-Order and to demand that the X-Order itself be given sufficiently late on X minus 1 to prevent the fact of Germany’s mobilization becoming known to Czechoslovakia on that day.
“The Army’s efforts are tending in the opposite direction. It intends to let OKW initiate all advance measures between X minus 3 and X minus 1 which will contribute to the smooth and rapid working of the mobilization. With this in mind OKH also demands that the X-Order be given to the Army not later than 1400 on X minus 1.
“To this the following must be said: