Tonight, we give you an inside look into one of Ukraine's most rapidly evolving tools in its war with Russia, drones.

These small unmanned machines have come to dominate the battlefield, from the front line in the east to long-range strikes against power facilities to the waters of the Black and Mediterranean seas.

Special correspondent Volodomir Solihub gained rare access to a military unit

that is responsible for some of Ukraine's highest-profile drone strikes.

And a note, we allowed them to review some of our footage before it aired for security reasons.

On a river outside of Kyiv, Ukraine's defense intelligence is taking us to one of their

most prized weapons.

They've helped push Russia's fleet away from occupied Crimea, disrupted supply lines, and

change the balance of power at sea.

Naval drones operated by a unit known as Group 13.

Magrara 5, a kamikaze boat.

Magra 7 outfitted with American missiles.

Inventing new weapons out of necessity, Ukraine doesn't have its own navy.

When Russia and its Crimea in 2014, Ukraine lost almost

all of its navy. So when the new invasion in 2022 started, Ukraine had to rely on unmaned naval

drones like these to fight a more powerful and much better equipped enemy. They're fast,

effective, difficult to detect, and has caused Russia a lot of trouble. Just last week, in a highly

produced video, Ukraine showed off how its naval drone struck a Russian submarine.

That helps keep the Western Black Sea open to Ukraine experts

and forces Russia's ships to dock in Nova Rosicque in their own territory,

well east of the occupied Crimean peninsula.

Group 13's commander, who we promised to keep anonymous, explains his unit's core mission.

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