For ongoing coverage of the Ukrainian conflict check out the following links:

The Guardian: https://www.theguardian.com/world/2022/mar/04/war-in-ukraine-what-we-know-on-day-nine-of-the-russian-invasion

The New York Times: https://www.nytimes.com/live/2022/03/04/world/russia-ukraine

Yes. Russia has more nuclear weapons than any other country: https://worldpopulationreview.com/country-rankings/nuclear-weapons-by-country