The Russian invasion of Ukraine began on February 24, 2022, when Russian military forces crossed the border into Ukraine from multiple directions.

Russian President Vladimir Putin has stated that the invasion was necessary to protect ethnic Russians in Ukraine, to prevent Ukraine from joining NATO, and to overthrow the Ukrainian government.

Kherson was the first Ukrainian city to fall to Russian forces on March 2, 2022.

Mariupol has been under siege by Russian forces since the beginning of the invasion and has been heavily damaged by Russian shelling.

Volodymyr Zelenskyy is the current president of Ukraine and has been leading the country's defense against the Russian invasion.

The international response to the Russian invasion of Ukraine has included widespread condemnation and sanctions against Russia, military support for Ukraine from NATO countries, and diplomatic efforts to negotiate a ceasefire.

The Russian invasion of Ukraine has had a significant impact on the global economy, leading to increased energy prices, disruption of supply chains, and increased inflation.

Over 10 million Ukrainian refugees have fled the country since the beginning of the invasion, according to the United Nations.

Over 10,000 Ukrainian civilians have been killed in the invasion, according to the United Nations.

Over 10,000 Russian soldiers have been killed in the invasion, according to Western intelligence estimates.

The Russian invasion of Ukraine is likely to have long-term consequences, including increased tensions between Russia and the West, destabilization of the region, and a humanitarian crisis.

The possible outcomes of the Russian invasion of Ukraine include a Russian victory, a Ukrainian victory, a negotiated settlement, or a prolonged conflict.

The United States and NATO are providing military support to Ukraine, imposing sanctions on Russia, and engaging in diplomatic efforts to resolve the conflict.

The United Nations is providing humanitarian aid to Ukraine, calling for a ceasefire, and mediating negotiations between Russia and Ukraine.

The international community faces a number of challenges in responding to the Russian invasion of Ukraine, including the need to balance support for Ukraine with the risk of escalation, the difficulty of providing humanitarian aid to Ukraine, and the need to address the long-term consequences of the conflict.