Never have I gotten a letter from the VA that requires my signature to be given the letter from USPS. Fill-in documents may be submitted as Word or pdf documents.The DD Form 214 is broken down into blocks. Personnel in the American military will be addressed with their first and last name with or without their rank on line 1. You're a veteran, navigating the maze of VA disability claims, and you need a nexus letter to connect the dots between your service and your ailments. Lay statements are important largely because they are evidence, in the same way that medical documents are considered evidence. When a veteran develops a disability or condition as a result of their military service, they may be eligible for VA disability compensation. These Boards are the highest level appellate review authority in the military.