The Global Positioning System, or GPS, is a network of Satellites used for accurate navigation of ships and aircraft.
They don't - all aircraft, ships, and submarines use both magnetic, gyro, radio, visual, and satellite navigation systems. Ships and submarines also use dead reckoning plots and land based navigational aids for fixes (close to shore) for navigating.
Aircraft yes. Ships no.
There are lots of navigation schools listed on the internet. Do a Google search to find one in your area. Most are oriented towards marine navigation, however, as aviation navigation is almost entirely computerized and integrated into the aircraft guidance system. In theory, though, there is little difference in the basics of either.
The Air Force has Aircraft not Ships. The Navy has Ships.
Primarily, radar is used in all aspects as a ranging device. It is extremely accurate in determining distances in navigation systems, fire control systems and tracking devices used on aircraft, ships, and missles. The specific military uses are tracking ships and aircraft and fire control systems for missles, ships and aircraft. They even use systems for conter battery, literally tracking an artillery shell and determining the location of the firing weapon.
Of course, navy aircraft are military aircraft.
Coordinates on a map are used for navigation. Many ships and aircraft use coordinates to travel vast distances. Coordinates are also utilized by GPS (Global-Positioning Systems).
caravel
Warship use the same navigation lights as civilian ships. Additional lights may be shown if engaged in special duties.
aircraft carriers
You have a FLEET of ships, SQUADRON of aircraft
fleet