Which two theories do you think a dictator might claim as justification for taking power?

The first one can be the theory about the defense towards the attack of internal and internal forces in the nation with the argument of bringing salvation to their peoples. The second one can be the theory of the establishment of security and the fight against corruption in a nation. Both pursue ideals and arguments that justify the use of dictatorship seen as a good thing and not as a bad execution of power.