Art of War – Chapter 2.1

Sun Tzu said: To wage a war on a large scale, you will need a thousand light chariots, a thousand heavy supply wagons, and one hundred thousand armored troops.

Transporting grain over a thousand li, together with expenses for envoys, materials for repairing weapons, and maintenance of chariots and armor, will cost a thousand pieces of gold each day. Only after such preparations can an army of one hundred thousand set out on campaign.

Note

Sun Tzu (Sun Wu)

A great military strategist and thinker in ancient China, who lived in the late Spring and Autumn Period. He authored The Art of War, the world’s earliest and most influential military classic. His strategic thoughts have been widely applied in military, politics and management worldwide.

Chariot

Main combat vehicle in ancient Chinese wars. Light chariots were for assault, while heavy wagons carried supplies and equipment.

Li

A traditional Chinese unit of distance. One li equals about 0.5 kilometers. “A thousand li” means a very long march.

Armored troops

Fully armed soldiers, the main fighting force in ancient armies.

Daily heavy expenditure

This passage emphasizes that war relies heavily on financial and logistical support, and reckless warfare will ruin a country.

Logistics supply

Grain, weapon maintenance and military supplies are the fundamental guarantee for long-distance campaigns.

The Logistical Lesson of Zhuge Liang’s Northern Expeditions

Sun Tzu states that mobilizing a large army requires a massive supply train (“a thousand heavy supply wagons”), daily expenditure (“a thousand pieces of gold each day”), and the capacity for “transporting grain over a thousand li.” Failure to secure this logistical foundation makes victory impossible.

Zhuge Liang‘s Northern Expeditions (228–234 CE) against the state of Wei perfectly illustrate this principle in reverse. His strategic goal was to seize the strategic Wei heartland, but his campaigns were repeatedly thwarted not by tactical inferiority, but by a single, overwhelming factor: food shortage.

The Logistical Trap of the Qinling Mountains

Zhuge Liang faced an impossible logistical equation:

1. Terrain: The route from Shu (Sichuan) to the Wei strongholds led through the treacherous Qinling Mountains – narrow, winding paths completely unsuited for Sun Tzu’s “heavy supply wagons.”
2. Transport: He was forced to rely on inefficient human porters and mule trains over treacherous mountain roads, a method far slower and more consumptive than wagon trains.
   
   Recognizing the problem of grain transporting, Zhuge Liang invented the “Wooden Ox and Gliding Horse” (Mùniú Liúmǎ). These were mechanical devices (often described as self-moving oxen or efficient wheelbarrows) designed to carry grain through the difficult terrain where traditional carts (like the “heavy wagons” Sun Tuit mentioned) could not easily pass. Although this invention had improved the efficiency of transporting provisions, it ultimately failed to completely solve the problem of food shortages.
3. Time: Each expedition had to be meticulously timed with the autumn harvest, creating a predictable operational calendar that Wei defenders could exploit. His final, failed innovation – military farming near the front – was a desperate attempt to solve a supply problem that was fundamentally unsolvable for his state. However he died of illness before harvest; the army retreated, ending all campaigns.

孫子曰：凡用兵之法，馳車千駟，革車千乘，帶甲十萬；千里饋糧，則內外之費賓客之用，膠漆之材，車甲之奉，日費千金，然後十萬之師舉矣。