A serviceman waves from a military truck painted with the letter "Z" in Mykolaivka in the Donetsk region, a territory controlled by pro-Russian militants in eastern Ukraine, on Feb. 27.

Russian tanks emblazoned with ‘Z’ were first spotted on Ukraine’s border. Here’s how the letter became a pro-war symbol ...

ZURICH, March 26 (Reuters) - Zurich Insurance (ZURN.S) has removed its Z logo from social media after the letter became a symbol of support in Russia for Moscow's invasion of Ukraine.