Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Categorize the following paragraph. Output its categories one by one, seperated by comma.

### Input:
Two years after the United States ended its combat mission in Afghanistan, violence in the country remains shockingly high, with Taliban insurgents and other insurgent and militant groups maintaining a strong presence across the country. The Taliban has gained ground in some parts of the country, and the Afghan government is struggling to contain the threat.

### Response:
Afghanistan, Taliban, Military, Government.