The Roman war in Spain was less about territorial conquest and more a strategic effort to stop reinforcements from reaching Hannibal in Italy. By engaging Carthaginian forces under Hasdrubal, the Scipio brothers tied down critical enemy armies and resources, preventing Hannibal from receiving the support needed to win.

History demonstrates that dominance over seemingly mundane but critical resources is a foundational element of national power. The Roman Empire's control of salt and 19th-century America's pursuit of guano (bird fertilizer) laid the groundwork for their military and economic dominance.

After losing Sicily, the Carthaginian general Hamilcar Barca and his son Hannibal didn't try to reclaim it directly. Instead, they built a new, resource-rich empire in Spain. Its vast mineral wealth funded a mercenary army, turning Spain into a formidable base from which to launch a revenge war against Rome.

Beyond military power, mass consumption of goods created a shared universe that bound the empire together. This economic activity produced knock-on effects that sustained the tax apparatus, creating a symbiotic relationship between widespread commerce and state power.

Once easily accessible gold was gone, the Spanish conquest of Peru transitioned from looting to institutionalized exploitation. Pizarro began granting `encomiendas`—huge tracts of land with thousands of indigenous laborers. This shifted the economic model from a short-term gold heist to a long-term colonial system based on forced tribute.

The Spanish conquest was characterized by the systematic destruction of Inca art. Rather than preserving priceless golden artifacts like llamas and flowers, they melted them into standardized bars for easy shipment and accounting. This reflects a colonial mindset that prioritizes raw monetary value over cultural and artistic significance.

For the Spanish, the first concrete evidence of a great southern empire wasn't raw gold, but a raft carrying manufactured goods like golden tweezers and mirrors. These items demonstrated a level of craftsmanship and social organization that signaled a truly advanced civilization, far more than simple resources could.

The fall of Rome was primarily an economic and demographic event. A long-term decline in population, starting as early as the 2nd century, combined with massive inflation, broke the crucial feedback loop between consumption, production, and the state's ability to collect taxes.

China has become the top trade partner for most of Latin America by buying raw commodities (soy, copper) and selling back cheap manufactured goods. This dynamic prevents local economies from moving up the value chain, echoing the extractive models previously imposed by Spain and the United States.