this post was submitted on 28 Sep 2024
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Sergei Lavrov accuses west of using Ukraine ‘to defeat’ Russia days after Putin shifts Moscow’s nuclear posture

Russia’s top diplomat warned on Saturday against “trying to fight to victory with a nuclear power”, delivering a UN general assembly speech packed with condemnations of what Russia sees as western machinations in Ukraine and elsewhere – including inside the United Nations itself.

Three days after Russia’s president, Vladimir Putin, aired a shift in his country’s nuclear doctrine, his foreign minister, Sergei Lavrov, accused the west of using Ukraine – which Russia invaded in February 2022 – as a tool to try “to defeat” Moscow strategically, and “preparing Europe for it to also throw itself into this suicidal escapade”.

“I’m not going to talk here about the senselessness and the danger of the very idea of trying to fight to victory with a nuclear power, which is what Russia is,” he said.

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[–] cynar@lemmy.world 7 points 11 hours ago

A modern nuke is FAR from the "bang 2 rocks together" designs that were first designed. For a start, most are fusion devices. Fairly exotic reactions are used to make a small amount of fusion material to go critical. This creates a shaped charge on a fusion core. The compression wave sets fusion happening, which releases 95% of the energy. Most of Russia's arsenal is of this sort.

The downsides of these is the use of exotic elements. They often have a short half life, e.g. tritium, with 12.5 years. This means they decay. Even worse, some of the byproducts will actually poison the reaction. E.g. Rather than producing a flood of neutrons, they absorb them.

If any of this chain fails, then your fusion nuke becomes, at best, a low yield fission nuke. More likely, it becomes a dirty bomb. It's still nasty, but not the city destroying terror weapon it would be intended as.