Russian invasion of Ukraine

The first dozen are supposed to be operational in July. But a "senior Ukrainian officer" says they're too late, because the Russians are ready to shoot them down: "often, we just don’t get the weapons systems at the time we need them. They come when they’re no longer relevant. F-16s were needed in 2023; they won’t be right for 2024. In the last few months, we started to notice missiles being fired by the Russians from Dzhankoy in northern Crimea, but without the explosive warheads. We couldn’t understand what they were doing, and then we figured it out: They’re range-finding.” The officer explained that Russia’s been calculating where best to deploy its S-400 missile and radar systems in order to maximize the area they can cover to target the F-16s, keeping them away from the front lines and Russia’s logistical hubs.

From https://www.politico.eu/article/ukraine-great-risk-front-line-collapse-war-russia/

Meanwhile there are a great many reports that Russia's Su 35 factory will produce 30 aircraft this year. Supposedly Mr Kim of North Korea has had a tour of the factory at Komsomolsk. I don't know whether whether this is a lie. Search on twitter for Su 35 production and you'll see it repeated many times.