Final answer:
North Africa is subject to foreign invasions due to its strategic location on the Mediterranean that provides key ports, its fertile lands that historically have been important for trade, and its significant oil and natural gas reserves that integrate it into the global economy.
Step-by-step explanation:
North Africa has been subject to foreign invasions for numerous reasons. Its strategic location on the Mediterranean Sea has historically provided access to critical ports and various waterways that facilitate trade and military movements. Historically, the region served as the "breadbasket" for empires like Rome due to its fertile lands and produced commodities like salt, gold, and ivory which were sought after by different civilizations.
The discovery of oil and natural gas reserves has made North Africa particularly attractive to foreign powers in the modern era. The export of these resources has become a dominant factor in the region's integration with the global economy. Moreover, the region's rich natural resources, such as iron ore, lead ore, copper, silver, mercury, and phosphates, beyond just energy commodities, have also drawn interest.
While North Africa does not possess the most productive diamond mines in the world, this characteristic does not detract from the regions allure due to its abundance of other valuable minerals and energy resources. Additionally, the historical links with Europe have led to continuous economic dependencies and interests in the region's stability and resources.