Topic 279 · Answers
Iran's missile fire at Diego Garcia
Which Iranian missile type was fired at Diego Garcia on 20 March 2026?
- Fattah
- Correct answer: Khorramshahr-4
- Shahab-3
- Sejjil
Core Trigger: On 20 March 2026 Iran fired at least two Khorramshahr-4 ballistic missiles at the US-UK base on Diego Garcia.From Book 1 RATNA, topic 279, point 1
One missile failed in flight; what destroyed the other?
- Correct answer: A US warship's SM-3 interceptor
- Iron Dome
- A Patriot battery on the island
- A THAAD battery
Outcome: One missile failed in flight; a US warship's SM-3 interceptor destroyed the other.From Book 1 RATNA, topic 279, point 2
Diego Garcia lies in which island group?
- Maldives
- Seychelles
- Correct answer: Chagos Archipelago
- Lakshadweep
Key Place: Diego Garcia lies in the Chagos Archipelago in the Indian Ocean, which Mauritius claims.From Book 1 RATNA, topic 279, point 3
Which is/are correct? 1. Britain and Mauritius signed a treaty on 22 May 2025 giving Mauritius sovereignty. 2. That treaty has been ratified.
- Correct answer: Only 1
- Only 2
- Both 1 and 2
- Neither
Treaty Status: Britain and Mauritius signed a treaty on 22 May 2025 giving Mauritius sovereignty; it remains unratified.From Book 1 RATNA, topic 279, point 4
Besides Iran, the UK and Mauritius, which state is a key party at Diego Garcia?
- France
- China
- Russia
- Correct answer: United States
Stakeholders: Iran, the United States, the United Kingdom and Mauritius are the key parties.From Book 1 RATNA, topic 279, point 5
Diego Garcia's location touches India's maritime neighbourhood in which ocean region?
- Arctic Ocean
- Correct answer: Indian Ocean
- Atlantic Ocean
- Pacific Ocean
India Link: Diego Garcia sits in the Indian Ocean region, so security events there touch India's maritime neighbourhood.From Book 1 RATNA, topic 279, point 6
In which year did Britain create the British Indian Ocean Territory?
- Correct answer: 1965
- 1971
- 1960
- 1968
Founded: Britain created the British Indian Ocean Territory in 1965 by detaching Chagos from Mauritius.From Book 1 RATNA, topic 279, point 8
The ICJ advisory opinion holding the UK's continued Chagos administration unlawful came in which year?
- 2016
- 2010
- Correct answer: 2019
- 2022
Landmark: The ICJ advisory opinion of 2019 held the UK's continued administration of Chagos unlawful.From Book 1 RATNA, topic 279, point 9
The ICJ held decolonisation of Mauritius was not lawfully completed in which year?
- Correct answer: 1968
- 1962
- 1971
- 1975
Legal Basis: The ICJ held that decolonisation of Mauritius was not lawfully completed in 1968; it also invoked self-determination.From Book 1 RATNA, topic 279, point 10
Which is/are correct? 1. An ICJ advisory opinion is legally binding. 2. Article 96 of the UN Charter lets the General Assembly request ICJ advisory opinions.
- Only 1
- Correct answer: Only 2
- Both 1 and 2
- Neither
Articles: Article 96 of the UN Charter lets the General Assembly request ICJ advisory opinions.From Book 1 RATNA, topic 279, point 11
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