Name the first country that officially imposed a nationwide ban on the augmented reality mobile game "Pokemon Go" on security and safety grounds.

Introduction / Context:
When Pokemon Go was released, it quickly became a global craze, with players using smartphones to catch virtual creatures in real world locations. At the same time, some governments raised concerns about security, safety and cultural issues. A few countries restricted or banned the game, and one country became widely known as the first to impose an official nationwide ban.

Given Data / Assumptions:

• The game in question is Pokemon Go, an augmented reality mobile game.
• The question asks for the first country to ban the game nationwide.
• Options include India, Russia, China, Iran and Turkey.

Concept / Approach:
The High Council of Virtual Spaces in Iran announced a ban on Pokemon Go, citing security concerns. Media reports highlighted Iran as the first country to issue such a complete nationwide ban on the game. Other countries had limited restrictions or discussions, but Iran took the step of banning the game fully for its citizens. Therefore, the correct answer is Iran.

Step-by-Step Solution:
Step 1: Recall news coverage about governments reacting to Pokemon Go after its launch.Step 2: Remember that Iran's authorities publicly announced a nationwide ban for security reasons.Step 3: Check the options and locate Iran among the list of countries.Step 4: Recognise that India, Russia, China and Turkey may have had various concerns or local restrictions but were not identified as the first to ban the game outright nationwide.Step 5: Select Iran as the correct answer.

Verification / Alternative check:
You can verify by recalling that many news headlines specifically used phrases such as "first country to ban Pokemon Go" in reference to Iran. While some other countries restricted certain locations or raised warnings, Iran's decision was distinctive for being a full ban across the country rather than partial regulation.

Why Other Options Are Wrong:
India: Some local authorities issued advisories or requested restrictions near sensitive areas, but India was not the first to announce a nationwide ban.
Russia: There were debates and some controversies, but Russia did not become known as the first country to ban the game across the entire nation.
China: China has strict rules on online games and mapping data, yet the widely reported "first ban" distinction belongs to Iran rather than China.
Turkey: Turkey experienced security concerns around gatherings but was not highlighted as the first country to ban Pokemon Go nationwide.

Common Pitfalls:
Because several countries expressed concerns and some places restricted use of the game in specific sensitive zones, candidates may incorrectly assume that any strict looking country was first to ban it. The safest approach is to remember the precise fact that Iran, through its High Council of Virtual Spaces, was reported as the first country to impose a nationwide ban, which directly answers this question.

Final Answer:
The first country to impose a nationwide ban on Pokemon Go was Iran.