Russia is a huge country, with 146 million people. Russia does have nukes, and does have a modern millitary with industrialized production outpacing NATO. Again, a war with NATO would be long and bloody, but likely would result in Russia winning or both sides losing. War with Russia should be the last thing anyone wants.
Israel couldn't even beat Iran, and Israel has all of the fanciest tools NATO has. A war with Russia would be long, bloody, and benefit nobody.