The U.S. in 1846 was not justified in going to war with Mexico, they didn't have justification to respond with violence.
Answer:
Yes the answer is it depends on a population.Example USA must have 435 and more representatives because of the huge population
Fifth amendment of the United States constitution.
The South African government decided to end apartheid because the leaders of the government decided that apartheid was bad, and wanted to fix the situation. Hope this helps