Cannabis, war and the logic of control

Power does not have one opinion about cannabis.
It has a use for it.

That is the lesson.

A state may ban the plant in one decade and demand it in another.
It may punish the user and recruit the farmer, fear the resin and need the fibre, erase the medicine and stockpile the rope.

Cannabis history cannot be reduced to simple pro-plant or anti-plant narratives. The plant has lived under monarchies, empires, dictatorships, colonial systems, democracies and black markets. In each case, the question was not only:

“What is this plant?”
It was: “Who controls it?”

That is the real political question.

Cannabis becomes dangerous or useful depending on the needs of power. A fibre crop can be patriotic during war. A smokeable drug can be treated as moral contamination. A medicine can become suspicious. A farmer can become a national resource. A user can become evidence.

The biology does not change.
The political frame does.

When the state needs the plant

World War II offers one of the clearest examples. Cannabis had already entered federal control through the Marihuana Tax Act of 1937, yet in 1942 the U.S. Department of Agriculture produced Hemp for Victory, encouraging farmers to grow hemp during wartime fibre shortages. A plant placed under tax and suspicion became patriotic instruction.

This is not hypocrisy as an accident.
It is policy as need.

When imported fibres were threatened, hemp returned as infrastructure. Rope, cordage, canvas and military supply mattered more than the stigma attached to the plant. For a moment, the state did not ask farmers to fear cannabis. It asked them to grow it.

Then, after the emergency, the old suspicion returned. That reversal is the point.

Power does not remember plants as people do.
It remembers utility.

The power of classification

China offers another version of the same division. Hemp has a long fibre and seed history and remains economically important, while drug-cannabis production is strictly prohibited.

The distinction is useful:

• hemp as industry, allowed.
• cannabis as drug, forbidden.

Same species complex. Different administrative fate.

This is not unusual. Many states separate the plant into acceptable and unacceptable identities. Fibre can be disciplined. Seed can be registered. Industrial use can be counted. Medical use can be licensed. Intoxication can be punished. What cannot be easily controlled becomes the problem.

This is why cannabis law so often becomes a language of categories.

• Hemp.
• Drug cannabis.
• Medicine.
• Industrial crop.
• Controlled substance.
• Export product.
• Contraband.

These names are not neutral. They decide which part of the plant is allowed to enter public life and which part is pushed into risk.

Authoritarian systems make this logic more visible, but they do not own it. Empires, democracies, wartime governments, colonial administrations and modern regulatory states all classify plants according to political need.

The question is always control.

Crop control reaches the field

The Taliban’s opium ban shows the harsher edge of crop control, although it is not a cannabis case. After the 2022 ban, UN reporting documented a dramatic fall in opium cultivation and severe consequences for farmers and labourers dependent on the crop.

This belongs near cannabis history not because opium and cannabis are the same. They are not.

It belongs because regimes can use crop bans to reshape land, income, rural life, coercion and political legitimacy.

Drug policy reaches the field
before it reaches the headline.

That is the lesson.

The same principle appears in wartime hemp campaigns, imperial fibre policy and modern licensing systems. The state may prohibit, command, tax, subsidise, inspect, certify, seize or promote the plant depending on its needs.

• Sometimes the plant is treated as criminal.
• Sometimes it is patriotic.
• Sometimes it is taxable.
• Sometimes it is strategic.
• Sometimes it is erased.
• Sometimes it is revived.

For LIBERA HERBA, the purpose is not to compare regimes cheaply.

We do not need to say “Hitler used hemp” or “Stalin used hemp” as shock trivia. That turns history into bait. The better point is sharper:

Power does not care about the plant’s soul.
It cares about obedience, supply, discipline, revenue, labour, war, trade and control.

That is why the same plant can move from banned substance to war crop without contradiction inside the state’s logic. The contradiction is ours. We expect law to reflect truth. Often, law reflects need.

Read the power around the plant

This does not mean all regulation is bad.

A serious cannabis culture needs rules: safety, testing, labelling, cultivation standards, environmental limits, worker protection, medical honesty and consumer protection. But it also needs memory. It needs to remember how quickly regulation can become prohibition by another name, and how quickly prohibition can become permission when the state needs the plant.

The plant under power teaches one lesson above all: never read cannabis law as if it were only about cannabis.

• Read the war.
• Read the market.
• Read the border.
• Read the farm.
• Read the paperwork.
• Read who profits when the plant is banned
  and who profits when it becomes legal.

Then the history becomes clearer.

Cannabis was not only prohibited because of what it was.
It was managed because of what it could become.

• Fibre.
• Medicine.
• Revenue.
• Threat.
• Labour.
• Evidence.
• Industry.
• Disorder.
• Export.
• Identity.
• War material.

And every regime, democratic or not, has tried to decide which version of the plant it can tolerate.

The plant did not change.
Power changed the label.