science

Operation Dunhammer

Operation Dunhammer 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 Operation Dunhammer rather than just read about it. In short: Operation Dunhammer (Danish for Operation Typha) was an internal investigation conducted by the Danish Defence Intelligence Service (Danish: Forsvarets Efterretningstjeneste, FE) which concluded the agency cooperated with the American National Security Agency to wiretap senior politicians, government officials, and government entities of certain European Union countries from 2012 to 2014. Report Due to concerns foll…

Key takeaways

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

Reference excerpt

Operation Dunhammer (Danish for Operation Typha) was an internal investigation conducted by the Danish Defence Intelligence Service (Danish: Forsvarets Efterretningstjeneste, FE) which concluded the agency cooperated with the American National Security Agency to wiretap senior politicians, government officials, and government entities of certain European Union countries from 2012 to 2014.

Report Due to concerns following Edward Snowden's leaking of the NSA's global surveillance operations, the Danish Defence Intelligence Service began the investigation the following year. The investigation ended in 2015, concluding that the NSA collaborated with the FE to eavesdrop on prominent politicians from 2012 to 2014, among them German chancellor Angela Merkel, leader of the opposition Peer Steinbrück, and foreign minister Frank-Walter Steinmeier. This was done through the use of the NSA's XKeyscore computer system, which probed data travelling through underwater internet cables in intercept stations such as Sandagergård, similar to the ECHELON program. Information about the report was released publicly by a consortium involving DR, Sveriges Television, NRK, Norddeutscher Rundfunk, Westdeutscher Rundfunk, Süddeutsche Zeitung, and Le Monde on 30 May 2021, following an investigation by the aforementioned organisations.

Aftermath Dunhammer's findings were privately released in 2015, but led to no immediate repercussions among the FE, with collaborations between the FE and NSA continuing as normal. In August 2020, Trine Bramsen who was recently appointed Danish minister of defence in June of the previous year was told of the operation, following which agency head Lars Findsen and three other officials were suspended.

See also Crypto AG, company owned by U.S. intel purportedly to spy on other countries Dropmire Spying on United Nations leaders by United States diplomats German Parliamentary Committee investigation of the NSA spying scandal

Notes

References

Worked examples

Example 1 — a first encounter with Operation Dunhammer

Start with the simplest possible case. Write down what Operation Dunhammer 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 Operation Dunhammer 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 Operation Dunhammer 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 Operation Dunhammer

In research: Operation Dunhammer 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 Operation Dunhammer 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: Operation Dunhammer is common in secondary-school and first-year university syllabi. It links to neighbouring topics 2010s in Danish politics, Denmark–United States relations, Espionage scandals and incidents, so understanding it makes those chapters shorter.
In everyday life: Look for Operation Dunhammer 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 Operation Dunhammer in 20 minutes

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

Frequently asked questions

What is Operation Dunhammer in simple terms?

Why does Operation Dunhammer 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 Operation Dunhammer?

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 Operation Dunhammer.