@isaackuo @dymaxion @wonka @dr2chase @cstross The problem is incredibly hard. Rested, trained humans aren't good at it. (and in a conflict like Ukraine, with similar troops, uniforms, and equipment, it's even worse.)
The capability to do "artificial biting insect" is near-term, if it's not poorly-distributed-present.
I expect someone is going to go for what they can build. It's how we got chemical warfare in the Great War; it's at least a chunk of how we got napalm and cluster munitions.