Marines must request paternity leave within 25 days after the birth of the baby. If deployed, the commander can approve paternity leave within 90 days of deployment and can authorize it outside that time period for extraordinary circumstances.
An injury to a nail may result in the loss of the nail. As long as the nail bed itself wasn't damaged, a lost nail should eventually grow back. Healthy fingernails grow at a rate of about 0.10mm per day, but toenails are slower, growing at only about one half to one third of a fingernail's rate.
Fortunately, in most cases, the fingernail will grow back on its own. Fingernails grow from the nail matrix, which is a specialized group of cells that are located deep under the cuticle area of the fingernail. These cells produce the new nail material slowly, but you should begin to notice that a new nail is slowly growing in.