Answer:
Heartland
Step-by-step explanation:
According to heartland theory, the most likely base from which to stage a successful campaign for world conquest would be the heartland, which is the central region of the Eurasian landmass. This region, which includes the vast expanse of eastern Europe and western Asia, was thought to be the most strategically important region in the world due to its central location and abundant resources. From this base, a conqueror could launch campaigns in any direction and potentially control the world.