To use your 'Strongest Soldier' poster, simply find a spot on your wall where you want to display it. You can use nails or wall - hanging tape to put it up. Make sure the surface is clean and dry before hanging. When it comes to maintenance, avoid exposing the poster to direct sunlight for long periods as it may fade the colors. If there's dust on it, you can gently wipe it with a soft, dry cloth. Also, be careful not to get the poster wet, as it may cause damage to the print.