Answer:
The last time the United States ever declared war was 1942 which was about 76 years ago.
Explanation:
For those in the industrial sector, organized labor unions fought for better wages, reasonable hours and safer working conditions. The labor movement led efforts to stop child labor, give health benefits and provide aid to workers who were injured or retired.
Feared a government with unlimited power
That answer to your question is damages related to a car accident. The first three (maritime claims, immigration laws, acts of war) all involve international aspects. Those three would arise if the United States (or a citizen) were to come into conflict with another country (or their citizens). The car accident, however, would take place solely within a state and thus be subject to the state's courts.