Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: Planes, bombs and crack commandos are at the forefront of the battle against Islamic State, but in the background a crucial battle of ideas is tackling one of the biggest questions in international life: what exactly is a state?

Islamic State and the idea of statehood