Cranwell will spend ages ramming various theories of leadership down your throat, boring you to death in a stuffy warm classroom or freezing your nuts off carrying pine poles round the North Airfield in the process of proving said theories.
But if you act with common sense, try to work out what your Boss and his Boss has to achieve and make sure your team is oriented in that general direction, and in the process treat your people as human beings, and crucially, learn the distinction between doing the correct thing and doing the right thing. then you won't go too far wrong in your first couple of tours. Your troops will see what you're trying to do, will look after you (it's a 2 way thing) and give you enough breathing space to develop your own effective and credible leadership style as opposed to the theories Cranwell tries to indoctrinate you with.