is inflation happening because of the war in ukraine?

In your country? I have no idea. In the United States, we are combatting the results of the implementation of "The Green New Deal"...which cost trillions of dollars for zero return...and shut down oil and natural gas production and the major pipelines. The price of gas shot up, and the cost to ship food and other goods all over our nation skyrocketed. The retailers passed their huge shipping costs on to consumers.