The operational level links the tactical employment of forces to national and military strategic objectives through the planning and conduct of operations. The operational level of war is the art and science of winning campaigns. c) Tactical - (mostly Art) The tactical level focuses on planning and executing battles, engagements, and activities to achieve military objectives assigned to tactical units or task forces.
And that's what formed our moon. Why some planets have many moons is basically because of their size. The planets in our solar system that have more moons are the large planets, Jupiter, Saturn, Uranus and Neptune. They're so big that they can collect a lot of moon. If comets swing by them, they can sometimes absorb comets, they can grab asteroids.
The planet Neptune has a dim planetary ring system which is made up of several separate rings and some ring arcs. The rings arcs are part of the outer ring called the Adams ring and are not to be seen anywhere else. The ring particles are unusually dark colored, and have large amounts of microscopic dust. Neptune has thirteen known moons. Four of them orbit the planet inside the outermost rings.