Somewhere in the first six weeks of your civilian role, you will be asked to write an internal memo. It will be on a topic the company is wrestling with. The ask will be casual. Could you put together a quick note on this. Two paragraphs is fine. By end of week.
This memo is a trap, and the trap is that nobody will tell you it is one.
The memo will be read by fourteen people. Maybe more. Most of them will not have met you yet. The memo is the first piece of substantive thinking they will see from you. The way the memo lands will determine your reputation inside the company for the next eighteen months.
This is not hyperbole. First impressions inside an organization compound. The senior leader who writes a sharp first memo gets included in the next strategic conversation. The senior leader who writes a sloppy or generic first memo gets quietly routed around. You do not get a second chance to make a first impression on the leadership cohort, and the first memo is the impression.
Three rules for the first memo.
The first rule. It is not two paragraphs. It can be one paragraph. It can be three sentences. It can be a single page. The length depends on the substance, not on what you were told. The asker said two paragraphs because they did not want to make you nervous. The asker actually wants the cleanest, sharpest read they can get on the topic. Give them that, in whatever length it actually requires.
The second rule. Lead with the position. Most civilian memos start with context and build toward the point. Yours should start with the point and build toward the context. The senior reader skimming the memo on their phone should know your position from the first sentence. They will read further if they want the reasoning. Most will not. The position needs to land in the first sentence.
The third rule. Name what you might be wrong about. The civilian boardroom reads confidence with epistemic humility as authority. It reads confidence without it as overreach. Your first memo should end with a brief paragraph naming the assumptions that, if wrong, would change your read. This is not a hedge. This is the move that distinguishes a senior thinker from a junior one. The reader of the memo, whether or not they consciously notice, calibrates their trust in you based on whether you did this.
The memo you write inside these three rules will be a different document than what most of the company produces. It will be shorter. It will be sharper. It will be obviously written by someone who has thought about it. The fourteen people who read it will, almost without exception, register that.
The senior leader who treats the first memo as casual writes a casual memo and reaps a casual reputation. The senior leader who treats the first memo as the single most consequential piece of writing they will produce in their first year writes a memo that opens doors for the next eighteen months.
It is the same paper. Different stakes. Different career.