The high-tech weaponry also includes robot tanks, hypersonic missiles and highly training special forces. It comes as elite paratroopers were seen being moved close to the border amid fears of a military operation to occupy Kyiv.
Russia’s X-winged Lancet drones – dubbed “Flying Kalashnikovs” – could be deployed to down unmanned warplanes.
An airborne minefield of the kamikaze weapons would be programmed to loiter above a battlefield and attack surveillance crafts.
It could pave the way for the first drone dogfights seen in modern warfare, while Britain and the US will be wary of the drones targeting their naval vessels.
A train with the Russian crack troops and their equipment was spotted moving west through the Bryansk region, which borders both Ukraine and Belarus, towards the potential war zone.
Nearly 130,000 military personnel have already been dispatched by the Kremlin to the north and east of their former Soviet allies.
Boris Johnson has warned Mr Putin any such invasion will be met with fierce guerrilla warfare, while Nato is holding jets on standby and US President Joe Biden is mulling over sending 50,000 troops of his own.
As such, former KGB agent Mr Putin may decide to deploy some unconventional weaponry in an effort to gain the upper hand.
Russian scientists claim to have created the world’s first autonomous driverless robot tanks – armed with sensors, rockets, machine guns and flamethrowers – which could wipe out enemy trench positions.
Kremlin defence officials claim after successful testing in Syria the Uran-9 strike robots are now already operational.
They are understood to be able to act independently, as well as in groups using AI and remote control.
Biden warns Putin’s war push would be ‘biggest invasion since WW2’
Mr Putin also has the option of a lightweight tank that can be parachuted onto land or into water.
The 18-ton Sprut-SDM1 war machines can hit targets from three miles away while being navigated at sea.
It has successfully passed tests after proving it can fire its anti-tank gun while being bashed about in 4ft waves.
The self-firing AI Kalashnikov rifle “with its own brain” is still at the prototype stage and appeared recently at an arms show.
It can identify targets and pull the trigger without the need for a human shooter.
Chief designer Sergey Urzhumtsev said the future Russian soldier will only need to “give permission” to their weapons to find and kill enemies.
In the battle of the skies and un-manned drones, Russia also has the S-70 Okhotnik – or Hunter – a stealth drone that boasts a flat and tail-less airframe, making it invisible to radar.
It is said to be able to fly from Moscow to London and back on a single mission – and would support Su-57 fighter pilots in packs of up to four.
The drones have missiles, spying radar and reconnaissance equipment.
Russia has vehemently denied that it will invade Ukraine.
Sources from within Ukraine have also stated they do not believe an invasion is imminent.
One academic believes that the strategy of putting Russian troops on the border of Ukraine is a diversion tactic, moving attention away from a “hybrid war” being conducted by the Kremlin.