Answer: (a) The primary purpose of this memo is to provide an update on the progress of the military operation and to inform the recipient that no official communique will be released until leading ground troops are confirmed to be ashore.
(b) The components of the military endeavor described by Eisenhower include preliminary bombings by air, landing of airborne formations, and progress through beach obstacles. The memo also mentions the clearing of channels, the reaction from shore batteries, and the enthusiasm and fitness of the troops involved.
(c) The ultimate outcome of the military maneuvers Eisenhower describes is not explicitly stated in the memo, but it can be inferred that the goal was to successfully land and establish a foothold on enemy territory.
Step-by-step explanation: