Answer:
Great Britain and china I believe
Explanation:
The effort from the US, UK and Canada to develop nuclear weapons was known as the Manhattan Project.
British and French disputes over the borders in the Ohio River Valley was one of the major causes of the opening of the American front in during the Seven Years War. This conflict would later come to be known as the French and Indian War.
Answer: Abraham Lincoln wanted to focus on preserving the Union instead of enslavement.
Explanation: In Lincoln's letter to Horace Greely, he states "if I could save it [the Union] by freeing some [slaves] and leaving others alone I would also do that."
