Lots and lots of liquid oxygen. Just gotta time it right so that the cloud of uranium oxide drifts over the Special Military Operation Enjoyers.
Liquid fluorine would be more effective (and more entertaining on every level), but the logistics can be tricky.
I'm unfamiliar with those reactions. Oxygen obviously helps things burn, but I doubt it would burn hot enough to melt a tank??
Prepare to be surprised. Iron in a pure oxygen environment can burn at up to 3000+ K, which is approximately the *boiling* temperature of iron. So if you can get iron burning and supplied with LOX, the reaction *can* not just melt the iron, but boil it... whereupon the iron vapor mixes with the oxygen and has a little chemical dance.
Uranium burns hotter. Uranium is akin to magnesium in that it will merrily burn in standard air; unlike magnesium, getting the reaction going is a chore. However, one way to reach the conditions needed to get uranium burning is to shoot it REAL HARD. Like, you know, out of a 120mm smooth bore tank cannon. So if you can somehow supply a tank with enough LOX *and* you shoot it Real Hard, you'll burn the iron, the carbon, the uranium in its structure to vapor and then clouds of fine dust. This is silly-difficult, but you could vaporize an entire tank, leaving nothing behind but perhaps a few bits of refractory metals like tungsten and molybdenum, but I imagine under these condistions they'll burn too. And if you're going the extra step of using fluorine, you'll also burn the sand the tank was sitting on. Fluorine oxidizes oxides.
If you can supply the tank with *fluorine,* then, why, you've got some real entertainment potential.
Also: it's my understanding that a lot of oxy/acetylene welders will, once the weld is going, turn down the acetylene and just run oxygen. The oxygen will burn with the iron being welded hot enough to easily melt the iron and keep the welding process going. I imagine this is tricky.
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