Explanation:
the significance is that they Allied Forces of Britain, America, Canada, and France attacked German forces on the coast of Normandy,
Answer:
First, a right to life; Secondly, to liberty; Thirdly, to property; together with the right to support and defend them in the best manner they can. These are evident branches of, rather than deductions from, the duty of self-preservation, commonly called the first law of nature.
Hope this helped out a little, I think I only know 3 of them.
Simple. One country might have some materials, goods, etc., that is vital for another country. These countries trade so that they are able to access the resources that other nations provide.