The Sukhoi Su-75 The past week has been quite intense in Russia – lots of interesting developments took place, and today I will mention three: Putin wrote a very interesting essay on the history of Russia and the Ukraine, which he followed up with a very interesting interview. Russia just concluded final tests for truly formidable weapons systems like the S-500 and the Mach 8 hypersonic missile Zircon. In its yearly aviation salon MAKS, Russia has just presented a 5th generation, single engine light multi-functional fighter the Su-75 “Checkmate” (shown here) These are all truly huge developments for Russia which we need to look into separately.