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: It is time for Parliament to "assert its authority" over UK military action after it was not consulted over Syrian air strikes, Jeremy Corbyn has said.

Syria air strikes: Jeremy Corbyn urges MPs to assert authority