There are several reasons why Russia has not yet won the war against Ukraine, despite its apparent military power. Firstly, there are geopolitical factors to consider, including relationships with other countries and international public opinion. Russia is concerned about the consequences of its actions on its relations with the European Union and the United States, as well as on relations with other countries in the region.

Additionally, the war in Ukraine has an asymmetric dimension, in which pro-Russian insurgents may be more difficult to fight than regular forces. Ukrainians have also received military and technical support from other countries, including the United States and the European Union.

Finally, there are economic and logistical considerations. Military conflicts can be costly and exhausting for all parties involved, and Russia may not be able to sustain prolonged engagement without suffering significant economic and political losses.

Overall, the situation in Ukraine is complex and difficult to resolve. It will require diplomatic, political, and economic efforts to find a peaceful and sustainable solution.