Why Russia does not trust NATO

Ukraine is a former Soviet republic. It is not a member of NATO. However, it is a NATO ally. And being means that at some point in the future, Ukraine will have the opportunity to join NATO. And Russia does not want that to happen. The Kremlin wants assurances from the West that Ukraine will not join NATO. The Western world, on the other hand, does not want to assure him.
Ukraine is home to a large numerous of Russian ethnic groups. The country's social and cultural ties with Russia are also quite close. Russia strategically considers Ukraine as its home.
Moscow alleges that the United States and NATO allies are supplying arms to Ukraine and conducting joint exercises. They fear the move could prompt Ukrainian government forces to try to seize control of rebel-held territory. Russia fears that some NATO members could set up military training centers in Ukraine. And even if Ukraine does not join NATO, the alliance will have the opportunity to maintain a military presence in the region.
What else is Russia worried about?

President Putin has been claiming that the Western world is using the NATO alliance against Russia. He wants NATO to suspend its operations in Eastern Europe. Putin has long accused the United States of violating a 1990 promise not to expand NATO in Eastern Europe.

But NATO has rejected Russia's claim. The alliance says Russia shares borders with a handful of its members. NATO has described itself as a defensive alliance.

Many believe that Russia is increasing its military presence on the Ukrainian border in an effort to put pressure on the West to take its security demands seriously.
What has NATO done in the past on the question of Russia and Ukraine?

In early 2014, Ukrainians ousted their pro-Russian president. In response, Russia annexed the Crimean region of Ukraine with the Russian Federation. Moscow also supports the armed Russians in eastern Ukraine. Although NATO did not intervene directly, it did, for the first time, deploy troops to several Eastern European countries.

NATO has four multinational battalions deployed in Estonia, Latvia, Lithuania and Poland. Romania has a NATO multinational brigade
The alliance has stepped up surveillance over the Baltic States and Eastern European airspace to bring down infiltrating Russian aircraft.
What has NATO promised Ukraine?

US President Joe Biden has said that Russia would have to pay a heavy price if it attacked Ukraine. The United States has placed 8,000 troops on alert. But the Pentagon says it will only send troops if NATO decides to deploy quickly. They do not want to deploy troops on their own.
Germany and the United Kingdom have also threatened to crack down on Russia.
Is NATO united on Ukraine?

US President Joe Biden has said he fully supports the position of European leaders on the Ukraine issue. However, the country disagrees with the proposals made by other countries.

The United States has said it will send 90 tons of ammunition, including ammunition, to Ukraine's frontline fighters. The United Kingdom is supplying Ukraine with short-range anti-tank missiles. Some NATO members, including Denmark, Spain, France and the Netherlands, are sending warplanes and warships to the region to bolster defense in Eastern Europe. However, Germany has refused to allow the Ukrainian government to send weapons to Ukraine. They have made this decision in line with their policy of not sending lethal weapons to the conflict zone. Germany has decided to send medical aid to Ukraine without sending lethal weapons. Meanwhile, French President Emmanuel Macho has called for talks with Russia to defuse tensions.