The 2014 Euromaidan in Ukraine was just one in a long string of foreign funded political coups. The "color revolutions" in Ukraine and Georgia preceded it. Rose Revolution in Georgia in 2003. Orange Revolution in Ukraine in 2004.
Both countries (Georgia and Ukraine) were former republics of the Soviet Union and sent troops to help US in illegal occupation of Iraq.
Then there was a statement by NATO that Ukraine and Georgia would be members of NATO in the future issued in 2008.
Russia-Georgia conflict happened in late 2008 after NATO announcement. The Georgian leader, thinking he had NATO backup, attacked the separatist regions of Georgia which broke away after the fall of the Soviet Union. And got his ass handed to him by Russian troops still using Soviet era equipment in a large counterattack. He is currently in a jail in Georgia after trying to agitate another coup to overthrow the current government. Which is not pro-Russian but Georgian people are sick of getting thrown into these kinds of conflicts with their larger neighbor.
The whole point of F-35A purchase is the nuclear sharing agreement with US to use the B-61 bomb. But it will be used as a trojan horse to increase purchases in the future. You will see. If Germany had any idea of independent European security policy they should have just bought the Rafale and entered a nuclear sharing agreement with France to use the ASMP-A missile or the future ASN4G. Similar to US nuclear sharing agreement. But like your friends in Twitter said Germany has shown in previous purchases like with helicopters that it is not interested in having an independent European security policy.
The US is currently trying to get Iran to sign the nuclear deal i.e. JCPOA v2.0. Part of the deal is that Russia will manufacture uranium fuel rods for civilian nuclear reactors using Iranian provided enriched uranium at 5%. That Russia will then take the spent fuel roads and process them. I will let you in a little secret. US Westinghouse had been working on making uranium fuel roads for Ukraine Soviet built VVER reactors which might be compatible (or not) with Iranian nuclear reactor. There is a facility to build them in Sweden. Another was being built in Ukraine. Notice Iran is not allowed to have these kinds of facilities which direcly handle nuclear fuel to make fuel rods. But the US AFAIK has no facilities to reprocess nuclear fuel after disposal. Other than Russia only France has these facilities. Not including Russia in the deal also means Iran's second nuclear reactor currently under construction by the Russians would stall. So you will find the Iranians to be mildly uncooperative, to say the least, with this deal. Especially since next US President in 2-3 years might just cancel everything again. It takes at least 6 years to build a civilian nuclear reactor.
I got kind of off-topic here but this deal will have important implications for future nuclear security arrangements worldwide.