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 Moon has a solid iron-rich inner core with a radius of 240 km (150 mi) and a fluid outer core primarily made of liquid iron with a radius of roughly 300 km (190 mi). Around the core is a partially molten boundary layer with a radius of about 500 km (310 mi).