Why Russia targeting precise air strikes in Ukraine cities?

Ukraine has been shaken by Russian attacks. For the past 10 days, many cities of Ukraine, including the capital Kyiv, have been targeted by the Russian army. Many government buildings, schools, cities, houses, localities have all been destroyed. 12 lakh people have become homeless. Many innocent people have been killed. Thousands of people are injured. Russia has turned the inhabited cities of Ukraine into ruins with its attacks.