Manned flying machines (not balloons, gliders or parachutes) used in combat began about 1911 with the Italians. 1. WWI (1914-1918) was the first general war involving mass numbers of aircraft, globally, including in Asia and Mexico. 2. WWII (beginning with the United States 1941-1945-the US produced more aircraft than all of the combatants combined) was the second general war involving mass numbers of aircraft, again on a global scale. 3. Korean War (1950-1953) saw the first jet clashes. But was restricted to primarily Northern Korea. 4. Vietnam War (1961-1975) saw the most bomb tonnage dropped from any war. But was restricted to primarily SEA (South East Asia-Laos, Cambodia, North Vietnam, and South Vietnam). WWI, WWII, Korea, and Vietnam Wars all saw heavy aerial combat between aircraft (dog-fights between propeller airplanes & jets). However: A. WWII was global. B. WWII involved more nations (countries). C. WWII was fought over oceans with aircraft carriers. WWII saw more aerial combat.
yes
Although some islands were used as airstrips, the primary naval air combat was "carrier war."
They were fought in combat; on land, sea, and air.
"Clashes, Air Combat Over North Vietnam"; by Marshall Michael (1997) ISBN 1-5911-4519-8. The most brutal air war ever fought by modern jets.
It meant air combat between aircraft.
Air combat (dogfighting), bombing, recon.
Trench warfare was the major form of fighting. Air combat was important but not the major form.
History's FIRST aerial war, in which flying machines (airplanes) fought each other in air to air combat (dog-fights).
Air Combat happened in 1992.
Air Combat was created in 1992.
The Royal British Air Force, in World War II
World War 1 was the first war that had combat take place in the air. Biplanes brought German and Allied pilots into combat in the air. German technology had the advantage as the guns attached to their planes held more ammunition and were less likely to missfire. (I need a little more time to find the resource to back that up but that is my recollection of my research.)