NIU YORK, UKRAINE - FEBRUARY 22: A Ukrainian army soldier walks through a trench on the Niu York frontline, February 22, 2022, Niu York, Donetsk Oblast, Ukraine. Russia yesterday recognized the independence of the self-proclaimed 'republics' of Donetsk anA Ukrainian army soldier walks through a defensive trench in Donetsk Oblast, Ukraine.

A senior U.S. Defense official warned that Moscow still has significant combat power left after it encountered tougher resistance from Ukrainian troops.

According to the official, the fighting in Ukraine is not quite the way that Moscow had anticipated.

The Russian's momentum has slowed over the last 24 hours.

We don’t believe that the Russians have employed the full scope of their electronic warfare capabilities, and it’s not clear exactly why.U.S. Senior Defense Official

The official said that they have not achieved the progress that they anticipated and that the fighting can change at any moment.

A US defense official said that about a third of the Russian troops that were placed along the borders of Ukraine have crossed into the country.

Ukrainian President Zelenskyy warned in the early hours of Saturday that a Russian assault was imminent. According to NBC News, sounds of combat could be heard in the city on Friday night.

The UK Ministry of Defence posted information on its official account at 10 p.m. about the U.S. assessment of Friday's fighting. On Friday.

Russian armored units continued to face strong resistance from the Ukrainian armed forces as they attempted to encircle the capital.

The U.S. Defense official said that Ukrainian military authorities have good control over their deployed forces.

Command and control refers to lines of communication between military decision-makers and units in the field. If troops are to act in a coordinated way, central control is important.

The official doesn't know why Ukrainian communications are still working.

The official said that they don't believe that the Russians have employed the full scope of their electronic warfare capabilities.

The enemy is clearly surprised by the results of the Ukrainian armed forces and volunteers to protect the integrity of our country.

The official said that the air missile defense systems are still working.

The official gave an update on the number of missiles that had been launched.

The official said that there have been more than 200 total launches as of this morning.

Oksana Markarova, the Ukrainian ambassador to the United States, said Friday that Russia's attacks were not as successful as the enemy had planned.

The enemy was surprised by the results of the Ukrainian armed forces and volunteers.