US military forces do a lot at home and abroad, but the different types of troops and the rules for each can be confusing.

Self-driving cars still get into accidents on highways, an environment for which there is abundant data to train algorithms, ...

particularly in some coastal areas where it has attempted to control local businesses. This photo provided by U.S. Africa Command, the U.S. military conducts coordinated airstrikes against Islamic ...

This photo provided by U.S. Africa Command, the U.S. military conducts coordinated airstrikes against Islamic State ...