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Panama Canal fence

Panama Canal fence is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Panama Canal fence rather than just read about it. In short: The Panama Canal fence is a term used for a variety of barriers built by the United States in the Panama Canal Zone to control movement in the zone for a variety of enforcement purposes. The Canal Zone, primarily consisting of the Panama Canal, a strip of land running from the Pacific Ocean to the Caribbean that was administered by the United States to various degrees until 1999.

Panama Canal fence — main illustration
Panama Canal fence — illustration

Key takeaways

  • Panama Canal fence belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Panama Canal fence to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Panama Canal fence from memory before moving on to harder problems.

Reference excerpt

The Panama Canal fence is a term used for a variety of barriers built by the United States in the Panama Canal Zone to control movement in the zone for a variety of enforcement purposes. The Canal Zone, primarily consisting of the Panama Canal, a strip of land running from the Pacific Ocean to the Caribbean that was administered by the United States to various degrees until 1999. The fence was occasionally dubbed a “fence of shame” and "another Berlin Wall” by those opposed to continued United States presence and control of the Canal Zone.

Background Panama gained independence from Colombia with the assistance of the United States and was recognized as a separate state in 1903. Diplomatic relations were established on November 13, 1903 between the United States and Panama. Both countries signed the Hay-Bunau-Varilla treaty. The treaty provided the United States with sovereignty over the Canal Zone. In exchange, the Republic of Panama received a $10 million payment and additional annual payments which began with the opening of the canal. In addition to this purchase from Panama, the United States bought the title to all lands in the Canal Zone, including a payment of $40 million to the French Canal Company for their properties. The treaty granted the Canal Zone, a strip 5 miles (8.0 km) wide on each side of the Panama Canal, in perpetuity to the United States to build, manage, strengthen and defend an inter-oceanic canal. The Canal Zone became a U.S. territory and had its own police, post offices, courts, television and radio stations. The approval of the treaty was a matter of significant and the continued existence of the canal became a matter of significant popular disapproval among Panamanian nationalists.

The Fence According to McPherson (2002) the construction started in the 1950s, after Panamanian students threatened a "patriotic invasion" of the Zone A scuffle between Zonian and Panamanian high school students over hosting Panamanian and US flags in the Canal Zone erupted into a protest on January 9, 1964. This was a result of an ongoing flag hosting dispute between US and Panama, over the period between 1959 and 1964. This led to series of incidents of civil unrest. Angry crowds formed along the fenced border between Panama City and the Canal Zone. According to Jackson (1999) at several points demonstrators stormed into the zone, planting Panamanian flags and began to tear down the fence creating gaps in front of the US District Court and several other spots along the fence. Canal Zone police responded firing shots and tear-gassing protesters pulling or climbing on the fence. The riots left four Americans and twenty-two Panamanians dead. The day, January 9, is marked in Panama as Martyrs’ Day and is a national holiday. These events compelled President Roberto Chiari to break diplomatic relations with the United States. Although the diplomatic relations between Panama and the United States were re-established on April 3, 1964, through the joint declaration Moreno-Bunker, these events led to significant Panamanian resent. As part of the Torrijos–Carter Treaties joint administration of the canal began in 1979. On December 31, 1999, the United States handed over full control of the canal to Panama.

Controversy The existence and purpose of the various Canal Zone fences remains a matter of significant controversy. It is generally agreed upon that a fence was built in the 1950s. However, the official and unofficial policies governing the ingress and egress of United States and Panama citizens, which had a significant impact on the functional effect of the fence, remain unknown.

References

External links The beginning of the end of the Panama Canal Zone Troubled passageway: following conflict through the Panama Canal

Illustrations

Panama Canal fence: Map of the Isthmus of Panama representing the line of the Panama Rail Road (before 1857)
Map of the Isthmus of Panama representing the line of the Panama Rail Road (before 1857)
Panama Canal fence: Panama Canal Zone
Panama Canal Zone
Panama Canal fence: Gatun (June 1924)
Gatun (June 1924)
Panama Canal fence: Monuments to the Martyrs Jan. 9, 1964
Monuments to the Martyrs Jan. 9, 1964
Panama Canal fence: USS Alabama (BB-60) transiting Pedro Miguel Locks, Panama Canal Zone --- August 26, 1964
USS Alabama (BB-60) transiting Pedro Miguel Locks, Panama Canal Zone --- August 26, 1964

Worked examples

Example 1 — a first encounter with Panama Canal fence

Start with the simplest possible case. Write down what Panama Canal fence claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Panama Canal fence before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Panama Canal fence ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Panama Canal fence

In research
Panama Canal fence appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Panama Canal fence in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Panama Canal fence is common in secondary-school and first-year university syllabi. It links to neighbouring topics Borders of Panama, Borders of the United States, History of the Panama Canal Zone, so understanding it makes those chapters shorter.
In everyday life
Look for Panama Canal fence outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Panama Canal fence in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Panama Canal fence means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Panama Canal fence out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Panama Canal fence in simple terms?

The Panama Canal fence is a term used for a variety of barriers built by the United States in the Panama Canal Zone to control movement in the zone for a variety of enforcement purposes. The Canal Zone, primarily consisting of the Panama Canal, a strip of land running from the Pacific Ocean to the…

Why does Panama Canal fence matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Panama Canal fence?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Panama Canal fence.

Tags

  • Borders of Panama
  • Borders of the United States
  • History of the Panama Canal Zone
  • Panama Canal
  • Panama–United States relations
  • Separation barriers
  • Walls

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