According to CNN, retired Gen. David Petraeus said that it was not surprising to see Russian military forces encounter difficulties while invading Ukraine.

During an interview with the network last week, Petraeus, a former Central Intelligence Agency director who led the 101st Airborne Division during the War in Iraq in 2003 and commanded US forces in Afghanistan, spoke of how the sustained Ukrainian resistance has impeded.

In pointing out the source of Russia's stumbles, Petraeus noted that Ukrainians have been relentless in their attempts to protect their country.

There are many reasons for the Russians poor performance. He told the network that the Ukrainian force is composed of special ops, conventional forces, territorial forces and even private citizens who are determined not to allow Russia to achieve its objectives.

They are fighting for their national survival, their homeland and their way of life, and they have the home-field advantage.

According to the United Nations migration agency, the Russian military operation in Ukraine has caused the displacement of over 6 million people and led to the departure of over 3 million people.

He said that the Russian forces have poor standards when it comes to performing basic tactical tasks, such as achieving combined arms operations. They are poor at logistical tasks.

The Soviet system has always lacked one of the key strengths of the US and Western militaries, which is a strong, professional non-commissioned officer corps.

Russia's weaponry paled in comparison to the tools utilized by the US military.

He told CNN that the Russians don't have equipment comparable to what the US has.

The retired general said that Russia's precision munitions were not accurate and that the country didn't cut off Ukrainian airport runways after invading the country.

The hospital in Mariupol, other medical facilities and the government center in Kharkiv are just some of the civilian infrastructure hit by the Russians.

Russia's cyberwarfare capacity this year was "unimpressive", and the country has been unable to take down the Ukrainian command and control system, according to the former intelligence chief.

Ukrainian President Volodymyr Zelenskyy uses his social media accounts to communicate with the world about the war on the ground in his country.

Petraeus said that Russia underestimated what it would take to control the Ukrainian government and replace it with one that was loyal to their country.

In every single area of evaluation, the Russians, starting with their intelligence assessments and understanding of the battlefield and their adversary, and then every aspect of the campaign, all the way down to small unit operations, have proved woefully inadequate.

He said that a lot of the population hate the Russians and that hatred is being deepened by every strike on civilian infrastructure. The Russians are alienating hearts and minds.