What philosopher argued that government must have great power to force obedience to its laws and to defend itself.?

The philosopher who argued that government must have great power to enforce obedience to its laws and to defend itself is Thomas Hobbes. In his work "Leviathan," Hobbes contended that a strong, centralized authority is necessary to prevent societal chaos and maintain order, as individuals in a state of nature would act in their self-interest, leading to conflict. He believed that to achieve peace and security, people must submit to the authority of a sovereign with significant power.