Russia's strike trigger that would spark a nuclear apocalypse has been picture for the first time.

The briefcase, known as Cheget in Russian, has a personalised key code, a flash card and in under 24/7 supervision.

President Vladimir Putin can send a permission code to the Strategic Missile Forces to give order to launch a nuclear weapon at any time.

There are a total of three laptop-sized briefcases which allow Putin himself and two other high-ranked officials to operate and carry a nuclear attack.

Putin's briefcase is one of three briefcases that can launch a nuclear attack

Television host Alexei Yegorov, from state-run media Zvezda, gave the public the first glimpse of what's inside the briefcase as the camera revealed it in close-up overview.

The Daily Star reports, Yegorov explained to the audience: "One of the briefcase's components is a flash card.

"It is individual, and it is one of the keys that is entered [into the system]."

TV host Alexei Yegorov showed the audience Putin' nuclear briefcase up close for the first time

The device has a row of numbers across the centre and four big buttons below and the white button is said to be the launch trigger.

It's also said a 'triple key' system is required from Putin and his two other high-rank officials in order to launch a nuclear strike, according to Atomic Heritage.

The two officials who hold the key to the other two briefcases are rumoured to be Defence Minister Sergey Shoygu, and Chief of the General Staff of the Armed Forces Valeriy Gerasimov.

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The 'cheget' is comparable Donald Trump's 'nuclear football', which contains the launch codes for US nuclear weapons.

But the 'nuclear football' doesn't have a launch button, instead, it includes a series of code books containing commands so the president can pass it on to the Pentagon.