Trump said he would end the war in Ukraine within his first 24 hours in office. His patience with Russia's Putin now appears to be wearing thin.

Can you survive 24 hours on military MREs? Watch as I eat only Meals Ready-to-Eat while attempting the intense US Army Fitness Test, including push-ups, sit-ups, and a 2-mile run. From hash browns ...

The U.S. military uses 24-hour military time to avoid confusion between a.m. and p.m. The Navy started using it in 1920, and the Army adopted it in 1942.