Military Aircraft

In modern air forces, the distinction between bombers, fighter-bombers, and attack aircraft has become blurred. Many attack aircraft, even ones that look like fighters, are optimized to drop bombs, with very little ability to engage in aerial combat. Indeed, the design qualities that make an effective low-level attack aircraft make for a distinctly inferior air superiority fighter, and vice versa. Perhaps the most meaningful distinction is that a bomber is generally a long-range aircraft capable of striking targets deep within enemy territory, whereas fighter bombers and attack aircraft are limited to 'theater' missions in and around the immediate area of battlefield combat. Even that distinction is muddied by the availability of aerial refueling, which greatly increases the potential radius of combat operations.
• Multirole combat aircraft
Many combat aircraft today have a multirole ability. Normally only applying to fixed-wing aircraft, this term signifies that the plane in question can be a fighter or a bomber, depending on what the mission calls for. An example of a multirole plane is the F/A-18 Hornet. A WWII example would be the P-38 Lightning.
Some fighter aircraft, such as the F-16, are used as 'bomb trucks', despite being designed for aerial combat.