What is the Atlantic Slave Trade?

 The Atlantic slave trade, transatlantic slave trade, or Euro-American slave trade involved the transportation by slave traders of various enslaved African people, mainly to the Americas. The slave trade regularly used the triangular trade route and its Middle Passage, and existed from the 16th to the 19th centuries (give me a thanks if it helps you!)

because of the war the westeners befriended japan and each other advance.