Fox News Digital foreign affairs freelance consultant Rebekah Koffler unpacks the reality of any nuclear threats or conflicts from Russia and North Korea.

Three weeks ago, a Russian flotilla of warships, including a nuclear-powered submarine, operated less than 30 miles off the coast of Key Largo, Florida, a development that the Pentagon dismissed as posing "no threat."

Really?

As a former senior intelligence analyst at the Defense Intelligence Agency (DIA), my expertise is on Russian war-fighting strategy and Russian President Vladimir Putin’s mindset. It is my intelligence assessment, made with high confidence, that although Putin’s recent deployment presented no immediate danger, it is indeed a grave threat to the U.S. homeland and here’s why.

The Russian naval action group – consisting of the missile frigate Admiral Gorshkov, the nuclear-powered cruise missile submarine Kazan, the oil tanker Pashin and the salvage tug Nikolai Chiker – was carrying out "combat service" tasks, according to the Russian Ministry of Defense.

WITHOUT PUTIN WHAT DID ZELENSKYY'S SWISS PEACE SUMMIT ACHIEVE?

Russia's Kazan nuclear-powered submarine arrives at the port of Havana on Wednesday, June 12, 2024. A fleet of Russian warships reached Cuban waters on Wednesday ahead of planned military exercises in the Caribbean. (AP Photo/Ariel Ley)

The Kazan, a Yasen-M-class guided missile submarine, carried guided missiles with a range of 1,000 nautical miles. Admiral Gorshkov is capable of executing long-range strikes and conducting anti-submarine warfare. These naval assets, which field a variety of anti-ship and land attack weapons, were testing anti-ship missiles virtually in the Atlantic against targets at a range of more than 350 miles. They are both capable of carrying the 1,000-mile range 3M-54 Kalibir NK land attack cruise missile, the P-800 Oniks anti-ship missile and the 3M-22 Zircon hypersonic anti-ship cruise missiles.

The Zircon (3M22 Tsirkon in Russian or SS-N-3 as NATO designation) is a scramjet-powered hypersonic missile that has a range of 1,000 km (625 miles) and travels at nine times the speed of sound. Developed on Vladimir Putin’s orders, Zircon is a new generation weapon designed with the primary purpose of overcoming U.S. missile defenses. It comes in sea-launched and ground-launched versions, with the kinetic energy sufficient to attack deep and hardened targets. Its hypersonic speed and ability to fly at low altitude and maneuver in flight........

© Fox News