By Max Hunder and Yuliia Dysa KYIV, March 20 (Reuters) - Ukraine has deployed military units to five Middle Eastern countries to help protect critical and civilian infrastructure against drones, Ukrainian security council secretary Rustem Umerov said on Friday after visiting the region.

Unmanned drones are cheaper than missiles, easy to mass-produce, can travel long distances, and strike with precision. For all these reasons they are reshaping conflicts around the globe. We hear from NPR correspondents about how drones are changing the nature of war and the balance of power in Ukraine,

Lockdowns at U.S. bases and a global security alert underscore concerns that Iranian retaliation could extend to officials on American soil.

San Francisco police are partly attributing the city's sustained decline in crime to new technology such as drones, but opponents argue that they expand surveillance in public spaces. Here's how the department is using them.

A U.S.-led defense manufacturing partnership agreed to launch a new missile motor production program with Japan, push forward a drone cooperation effort

In eastern Ukraine, white nylon nets now stretch over roads and city streets, a low-tech defense against deadly FPV drones that dominate the battlefield and threaten civilians near the front line.

Each drone is designed to carry enough water “to create over 50 gallons of finished foam suppressant,” which can reduce the speed at which a wildfire consumes fuel. The drones are designed to be able to reach and extinguish a small fire before humans can.

Multiple unidentified drones were detected overnight above Fort Lesley J. McNair in southwest Washington on Wednesday, prompting a security review at the Army post where two senio