Lines of latitude are parallel to the equator.
The boundaries changed, that is, increased in Israel's favor. The Arab controlled territory was reduced. It was increased after the British rule ended when the State of Israel was formed. Future conflicts could be war regarding territories and expansion.
One way that the British government carried out the policy of mercantilism was by (4) requiring that most colonial trade occur within the British empire. This was the basic policy of colonial mercantilism, where colonies such as the United States could only trade with Great Britain, and was banned from trading with other colonial superpowers, such as the Netherlands, France and Spain.