The responsibilities of government include the obligations to administer, adjudicate, legislate, and, by means of police and various punitive measures, to enforce the law. Government defence obligations also require it to maintain military forces; and its financial obligations require it to acquire vast sums of money. Governments may use any of these instruments, required for fulfilling their obligations, to interfere with personal freedom, for example, by over-regulation of free enterprises, by over-taxation, by censorship, by curfews, by compulsory military service, and in countless other ways that violate human rights including the right to life.