Russia has in recent months attacked Ukraine with a cruise missile whose secret development prompted Donald Trump to abandon a nuclear arms control pact with Moscow in his first term as US president,

VLADIMIR Putin has been secretly pummelling Ukraine with a banned missile for months – forcing Donald Trump to start testing nuclear weapons again. Ukraine reports the cruise missile,

During a visit to a military hospital on Wednesday, Putin told reporters that his military has also tested an unmanned nuclear-powered submarine, dubbed the Poseidon, that can carry a nuclear payload. Cole said Russian reports indicate that the sub's payload could be capable, "in theory, of triggering a massive tsunami."

Questions have arisen after Russian President Vladimir Putin said his country tested two nuclear-capable weapons this week.

Vladimir Putin fired the ‘secret’ Novator ground-launched 9M729 missile in Ukraine, threatening a new nuclear arms race. Ukraine’s foreign minister Andrii Sybiha said Russia has been the weapon, the secret development of which prompted Donald Trump to walk out on a nuclear arms control pact with the Kremlin his first term.

Russia has grappled with a shrinking and aging population for decades, with President Vladimir Putin viewing it as a threat to national security.

North Korea’s top diplomat visited the Kremlin on Monday for talks with Russian President Vladimir Putin, which followed last month’s meeting between the countries’ leaders. The show of deepening