Independence Square is the latest Arkady Renko detective thriller by Martin Cruz Smith, a series that began with Gorky Park in 1981. This novel is set in 2021 as Putin is preparing to invade Ukraine and takes place in Moscow, Kyiv, and Crimea. It has intrigue, romance, oligarchs, the FSB, and an aging hero, Arkady, who’s in the beginning stages of Parkinson’s disease. The whodunit part is great and the context, Russia’s campaign of racist nationalism driving the invasion is an important part of the Ukraine war most Americans don’t understand. Fun page-turner I recommend. Here’s what Kirkus Reviews says
https://www.kirkusreviews.com/book-reviews/martin-cruz-smith/independence-square-smith/