Apple is reacting to Russian aggression, following extension sanctions from the European Union and the US. Apple has now stopped selling all products in Russia, such as iPhones and MacBooks. Likewise, it has removed the state-affiliated RT News, and Sputnik News have been banned from the App Store outside Russia. Tim Cook has addressed his employees about 'the ongoing crisis in Ukraine' in an extensive email too.
https://www.notebookcheck.net/Apple-stops-selling-all-products-in-Russia-as-Tim-Cook-issues-a-lengthy-statement-to-Apple-employees.605603.0.html