MP Materials secured investment as Donald Trump sought to counter China and take a new approach to national defence

The angry confrontation arose from claims the DOGE official had summoned law enforcement to remove a subordinate from the building.

The Pentagon pulled senior Defense Department officials from the Aspen Security Forum on Monday, a day before the four-day summit in Colorado was set to begin. Why it matters: The bipartisan national security forum has attracted Republican and Democratic administration officials for years.

The Pentagon awards $200 million contracts to Google, OpenAI, Anthropic, and xAI to develop AI systems for US defense and national security operations

The Army is working on new tech, drones, autonomy, better decision-making, and more to deter and prepare for conflict with China.

Mike Waltz, Trump's former national security adviser, faced questions from Democrats on the Signal chat controversy Tuesday in confirmation hearing for U.N. ambassador.

Google, Anthropic, OpenAI and Elon Musk's xAI — will help the DOD develop AI workflows for key national security missions.

The Pentagon is set to spend nearly a billion dollars for AI with four major Silicon Valley tech firms, Google, xAI, OpenAI and Anthropic.