The best-known triangular trading system is the transatlantic slave trade, that operated from the late 16th to early 19th centuries, carrying slaves, cash crops, and manufactured goods between West Africa, Caribbean or American colonies and the European colonial powers, with the northern colonies of British North.
They attacked flight crews.
Canada feared the invasion by the US from both the north and the south.
The appropriate response is "The Preamble does not plot the forces of the Constitution." The Preamble serves exclusively as a presentation, and does not allocate forces to the national government, nor does it give particular constraints on government activity. Because of the Preamble's constrained nature, no court has ever utilized it as an unequivocal factor in the event of mediation, aside from as respects silly case.
Answer: They fail simply because the American political system is designed to support only two major parties. As well as this, 48 of the 50 states employ a winner-takes-all system for electoral votes.
Explanation: Third parties often represent an ideology that is considered too radical by the mainstream parties and their constituents.