Defense industry sources worry about what Mykhailo Fedorov's dismissal could mean for battlefield innovation at a pivotal moment in the war.

Motherships are helping Ukraine send small drones farther into battle and strike from less predictable directions.

Foreign fighters told Business Insider that new contracts and higher pay could fix manpower issues if soldiers stick around long enough.

As drones radically change how wars are fought, Ukraine is putting would-be pilots through a test of nerves and skill before sending them to fight.

Business Insider went inside a Ukrainian factory building ground robots for deadly missions soldiers can no longer risk.

The Ukrainian market is saturated with different types of ground robots, but unit commander would like more holistic services.

Elite US airborne troops from the 82nd Airborne Division were among the American forces involved in leading the rescue operation.

Ukraine also struck a Russian warship at a naval facility near St. Petersburg as guests flocked to the city for Russia's flagship economic forum.

Ukraine's defense chief said stripping Russia of Starlink and hitting it with mid-range strikes has contributed to the high losses.

The Vyrivniuvach, made by DG Industry with support from Brave1, is cheaper than Western equivalents and will be compatible with a mix of aircraft.

Business Insider journalists witnessed a rare, day-long Russian onslaught that began with daytime drones and turned into nighttime missile fire.

British troops are getting missiles produced by a UK-based startup as top militaries seek a cost-effective defense against attack drones.

The American military sent two destroyers through the strategic waterway in support of mine-clearing and ahead of a full blockade of Iran's ports.

The USNS Big Horn suffered more than $20 million in damage after the Middle East grounding, a command investigation reveals.

The Merops system uses a roughly $15,000 reusable interceptor drone, giving the US a cheaper air defense option against Iran's Shahed drones.

Ukraine developed low-cost ways to defeat Iranian drone designs, and some troops say the lessons from its war now have wider relevance.

LUCAS drones and PrSM missiles are two of the many munitions that American forces have used to strike Iranian targets.

The US and Israel said they hit hundreds of targets across Iran, ranging from military sites to high-ranking officials.

New satellite imagery captures initial damage from the US and Israel's attack on Iran, including a burning warship and drone activity at air bases.

The drone's development comes as the Pentagon pushes to procure and field inexpensive drones to keep pace with adversaries.

From Tomahawk cruise missiles to Patriot air defense batteries, the US has used a range of weapons in its latest Middle East fight.

A US official told Business Insider that land, air, and naval forces are participating in the air defense operations.

NATO needs to use this time to prepare for a Russian resurgence in the Arctic, a top Norwegian military official told Business Insider.

North Korean forces initially supported Russia with infantry assaults, but they've pivoted to drone and artillery operations.

Business Insider traveled north of the Arctic Circle to watch Finland's Jaeger Brigade train NATO forces on winter warfare and cold-weather survival.

A defense official said the drone's intent was unclear. It was shot down after it "unnecessarily maneuvered" toward the carrier.

Here's what it's like on an air base in Lithuania, on Russia's doorstep, where Spanish jets are deployed to support NATO air policing operations.

A defense official said so few injuries on such a complex raid spoke to the expertise of US forces.

The surge of drones on the battlefield has made it almost impossible to pull off traditional casualty evacuations.

Ukraine's internal security agency said the attack damaged and disabled a Russian Kilo-class submarine in the port city of Novorossiysk.

New documents reveal how the USS Gettysburg shot down an F/A-18 and nearly hit a second one above the Red Sea last year.

The $60 million F/A-18 and a tow tractor slid off the USS Harry S. Truman while it evaded a Houthi missile attack, new documents show.

An Air Force citation obtained by Business Insider describes how the pilot survived a harrowing mission in enemy airspace.

Business Insider went aboard a Royal Air Force Voyager tanker to watch it refuel NATO fighter jets operating over Eastern Europe.

The stealth fighter jets escorted B-2 bombers during the US military strikes against Iran's nuclear facilities in late June.

The American-made Merops system has already recorded over 1,000 kills against Russian Shahed-type drones in Ukraine.

The US Navy needs multi-mission, long-range autonomous warships that can traverse and fight across the vast waters of the Pacific.

Business Insider spoke to a boom operator about their responsibilities aboard a KC-135 tanker at a base in England.

The footage shows how Ukraine is scrambling to defend the embattled city from brutal Russian assaults.

Ukrainian soldiers told Business Insider the tactic is becoming increasingly frequent and a growing challenge.

It's the second time in just a few months the US president has brought up nuclear submarines in response to Russian talk about its weapons.

The NATO mission began in January after several incidents of sabotage in the Baltic Sea, some of which has been linked to Russia.

Ukraine is still finding thousands of foreign-made parts in Russian weapons over three and a half years into the war.

Ukraine has relied on its armed naval drones to battle Russia's Black Sea Fleet in a display of asymmetric warfare.

Interceptor drones, once a far-fetched experiment, are now a cornerstone of Ukraine's air defense, downing Russian Shaheds. NATO is watching closely.

Helicopters with guns have increasingly become an important part of Ukraine's air defense network.

Ukrainian soldiers and drone operators said that Russia has ramped up its attacks on drone pilots since the war began.

NATO is betting on drones, robots, and other emerging technologies to modernize its naval forces and help gain an edge over foes.

Long-range drones struck the Russian port of Primorsk, setting a ship and a pumping station on fire. Oil prices initially jumped on the news.

The UK is planning to mass-produce thousands of interceptor drones for Ukraine to help it defend itself against Russia's growing attacks.