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.
Your nail will grow back and it may have ridges at first or otherwise be deformed. It will take a year or more for the nail to cover the nail bed. Yes it will grow back. I lost 2 of my nails, it will take 3-4 months to grow back. Go to the doctor because sometimes they can put something on your finger to help the nail grow back straight. Don't forget to clean the finger in the morning and before bed, good luck!