"2. Mere chance which may cause the collapse of the whole enterprise;

"3. Human failings;

"4. Weather conditions.

"The final date for striking must be fixed well in advance. Beyond that time the tension cannot be endured for long. It must be borne in mind that weather conditions can render any surprise intervention by Navy and Air Force impossible.

"This must be regarded as a most unfavorable basis of action.

"1. An effort must be made to deal the enemy a significant or the final decisive blow. Considerations of right and wrong or treaties do not enter into the matter. This will only be possible if we are not involved in a war with England on account of Poland.

"2. In addition to the surprise attack, preparations for a long war must be made, while opportunities on the continent for England are eliminated.

"The Army will have to hold positions essential to the Navy and Air Force. If Holland and Belgium are successfully occupied and held, and if France is also defeated, the fundamental conditions for a successful war against England will have been secured.

"England can then be blockaded from western France at close quarters by. the Air Force, while the Navy with its submarines can extend the range of the blockade.

"Consequences:

"England will not be able to fight on the continent; daily attacks by the Air Force and Navy will cut all her life-lines; time will not be on England's side; Germany will not bleed to death on land.

"Such strategy has been shown to- be necessary by World War I and subsequent military operations. World War I is responsible for the following strategic considerations which are imperative:

"1. With a more powerful Navy at the- outbreak of the War, or a wheeling movement by the Army towards the Channel ports, the end would have been different.

"2. A country cannot be brought to defeat by an air force. It is impossible to attack all objectives simultaneously, and the lapse of time of a few minutes would evoke defense counter measures

"3. The unrestricted use of all resources is essential.