LIVE UPDATES: Paris Will Continue Sending Weapons to Ukraine in 2023 - French Defense Minister

There is also a principled problem with Ukraine's accession, the official argued, because NATO's basic founding treaty says that a country that is at war cannot be admitted to the military alliance.

The minister added that according to US representatives, the Patriot systems will be put into operation gradually over several months, until Ukrainian servicemen master the technology.

The US and its allies are facing difficulties in supporting Ukraine's energy system due to a lack of equipment in the global supply chain and the incompatibility of some equipment with the Ukrainian power grid, US media reported Wednesday, citing an American official.

In mid-December, Ukraine received the first tranche consisting of $53 million worth of US-provided energy-related equipment and technical support for the country's damaged power grid, the official said, according to the report.

However, while the US and its partners are trying to provide Kiev with necessary supplies to keep the electricity and heat on this winter, they have to reckon with problems in global supply chains, the report read. Washington is working with the non-government sector to reduce equipment shortages, but supply chain problems are still causing a number of difficulties, according to the report.

Additionally, some expensive elements of the US power supply system operate on a different frequency grid than in Ukraine, so they are incompatible with the Ukrainian energy system, the report read.

Washington plans to supply large gas-fired generators to Ukraine in the short term, according to the report.

Even after Ukraine's power systems are restored, they will not be able to operate at full capacity immediately, as this would likely lead to their failure, so Kiev might be forced to continue with rolling blackouts until it is sure that the power grids can withstand the load, the report read.

There is no need in responding to Kiev’s calls to exclude Russia from the United Nations, Russian Foreign Ministry spokeswoman Maria Zakharova told Sputnik on Wednesday.

“Do nothing. This is the case when the dogs bark, but the caravan goes on. Do nothing,” Zakharova said, answering the question of how Russia should react to such statements.

Zakharova also recalled that Ukraine faced different personalities in its history.

“They completely ruined the country, brought it to the brink of disaster. We just need to take it into consideration, build our policy accordingly," Zakharova added.

On Monday, the Ukrainian Foreign Ministry called for Russia to be excluded from the UN, despite the fact that it is impossible under the Charter of the organization, in which Russia has the right of veto in the Security Council, the main organization’s body.