Europe on fire -The Russian war on Ukraine, its causes and consequences

The Russian declaration of war on Ukraine will not pass unnoticed by the NATO countries, especially the United States, and Russia will not be spared from violating the rules of international law and peacekeeping treaties, as the consequences of the Russian war will not be limited to Ukraine only, but rather it is a threat to humanity, considering that Russia is a country that possesses A huge nuclear arsenal, and this war will antagonize nuclear countries as well, such as the United States and France. This war will also lead to heavy losses of lives and a decline for the global economy as a whole, considering Russia is one of the largest exporters of oil and the first country to issue natural gas, but the first to harm these dire consequences is Russia, as the European countries announced Economic sanctions against Russia to deter it for its aggressive behavior against Ukraine and its people. But who is the victim? Does Russia have the right to declare war on Ukraine in defense of its national security, given that Ukraine is the dividing line for its borders with NATO countries? Nor does Ukraine have the right as a sovereign state that does not want to remain under the mantle of Russia? What are the causes and dimensions of that war? The answer will be through this study.