Which country is the largest in area?
Russia is the largest country in the world by land area, covering more than 17.1 million square kilometers (6.6 million square miles).
Complete the following task based on the instruction and optional input provided.### Instruction:
Which country is the largest in area?

### Output:
Russia is the largest country in the world by land area, covering more than 17.1 million square kilometers (6.6 million square miles).