Trump reveals he moved 'most lethal weapon ever made' closer to Russia after threat

Donald Trump has made further provocative comments about moving a nuclear submarine closer to Russia when tensions escalated back in August.

There appears to be no progress in a potential ceasefire in Ukraine, with Trump continuing to issue updates on the situation.

Speaking on Tuesday (September 30), the president said: "We were a little bit threatened by Russia recently, and I sent a submarine, nuclear submarine, the most lethal weapon ever made.

"Number one, you can't detect it. There's no way. We're 25 years ahead of Russia and China in submarines."

This comes after Trump said he had ordered submarines to be moved to 'appropriate regions' last month following comments from former Russian prime minister Dmitry Medvedev.

Medvedev had warned the US it should remember how 'dangerous' the 'dead hand' can be - which is understood to be the code name of Russia's retaliatory nuclear strikes.

Discussing the nuclear arsenal available for the US, Trump added today: "Frankly, if it does get to use, we have more than anybody else. We have better, we have newer, but it's something we don't ever want to even have to think about."

Trump previously moved the 'most lethal weapon ever made' closer to Russia (Alex Wong/Getty Images)

Amid the ongoing war in Ukraine and tensions between NATO and Russia, talk of World War III has never been stronger, with the discussion of nuclear weapons a big talking point within that.

Trump addressed US' nuclear capabilities on Tuesday and said: "You don't have to be that good with nuclear. You could have one-twentieth what you have now and still do the damage that would be, you know, that'd be so horrendous."

However, the president said nuclear isn't a word that should be 'thrown around' too often, as he added: "I call it the N-word. There are two N-words, and you can't use either of them."

Trump's comments come after a turbulent few weeks in Europe after Russia was accused of violating the airspace of NATO countries.

Tensions are rising in the US (ALEXANDER KAZAKOV/POOL/AFP via Getty Images)

A trio of Russian MiG-31 fighter jets allegedly crossed into Estonia's airspace for approximately 12 minutes, a claim that Vladimir Putin's country has denied.

Meanwhile, Poland's Prime Minister, Donald Tusk confirmed that armed forces had intercepted several drones - later identified as Russian - which had crossed into Polish airspace.

After its airspace had been violated, Poland requested to invoke NATO's Article 4, which means NATO members 'will consult together whenever, in the opinion of any of them, the territorial integrity, political independence or security of any of the Parties is threatened'.

Following the events, Trump told NATO countries that they should shoot down Russian planes if they breach airspace again.

Responding to a reporter who asked if NATO countries should go ahead and take this type of action if the breach happens, he said 'yes, I do'.

Alexey Meshkov, who is Russia's ambassador to France, explained that if NATO countries did shoot down their aircraft, it 'would be war'.

Troubling times for sure.