Investing opportunities presented by the crisis in Ukraine

So any serious investors or traders here have thoughts on investing because of the Russian sanctions, the Ukraine and Russia being tied up in a war, etc? Things the retail investor can do (so not wheat futures or the currency markets or crypto).

I am thinking of fertilizer companies for the coming food crisis that is upon us...something like MOC and CF, or is it already too late for that.

ADM for wheat and food production.

Thought about defense (like B, NOC, RTC, LMT) but the PPS is so high already.

What is the profit angle on this situation?