Look through a pair of binoculars to obtain a better view of the helicopter. Focus in on color, markings and features to help determine if the helicopter is military.
Use paint color as a clue to determine if the helicopter is military. Look for black, olive drab or tan coloration as a clue to indicate if the helicopter belongs to a branch of the military.
Look for flags or other large prominent markings on the helicopter. Use a reference book, chart or cards to help identify the helicopter as military, and also the nationality.
Use the shape of the helicopter as a clue to help determine if it is military. Look for the long and narrow shape of a U.S. Apache helicopter, or the double rotor of an equipment and personnel transportation helicopter.
Identify weapons on the helicopter. Look for rockets, missiles and guns that indicate the helicopter belongs to a military and is designed for offensive combat use.