In a barter economy, individual goods are traded for other goods
Reading this, he is trying to say that the French and the Spanish are powerful allies for the US and they need to make a peace treaty, the Peace of Paris, to stop the bloodshed between the two.
An assumption with supply-side economic would be "Tax cuts will stimulate the economy "...
No, it wasn't wise. It basically started the war. War was pretty much inevitable at this point but it was the straw that broke the camel's back.
Answer:
Africans were in turn brought to the regions depicted in blue, in what became known as the "Middle Passage". Enslaved Africans were then traded for raw materials, which were returned to Europe to complete the "Triangular Trade".