Actions by and against Yemen’s Houthi rebels have been a real-world stress test for the American military, report says.

Last week, a Chinese startup, DeepSeek, released R1, a large-language model rivaling ChatGPT, that is already unraveling the U.S. tech world. The open-source model performs just as well, if not better ...

There are significant challenges to overcome if we are to deploy something similar to Israel’s acclaimed air defense network ...