Why did they ensure domestic tranquillity?

The phrase "ensure domestic tranquillity" reflects the goal of establishing peace and stability within a nation. This is crucial for promoting social order, fostering economic growth, and protecting the rights and freedoms of citizens. By maintaining harmony among diverse groups, a government can prevent conflicts and create a conducive environment for cooperation and progress. Ultimately, ensuring domestic tranquillity helps to uphold the foundational principles of democracy and the rule of law.