An adjudicator reading a buddy statement has seen thousands of them, and most say some version of "I served with this person and they're a good soldier who deserves help." That kind of letter rarely moves a claim, because it doesn't do the one thing a buddy statement is supposed to do: supply firsthand facts the VA doesn't already have.

A buddy statement, sometimes called a lay statement, is testimony from someone who personally witnessed an event, an injury, or a change in your health or behavior. It exists to fill gaps official records can't, because no report was ever filed, because symptoms weren't reported at the time, or because a condition developed gradually with no single document capturing it. Written well, it can be the difference between a denial and an approval.