weapons first appeared in their modern form on the battlefield in Vietnam a little over 50 years ago. As armed forces have strived ever since for accuracy and destructiveness, the cost of such weapons has soared. America’s-guided artillery shells cost $100,000 a time. Because smart weapons are expensive, they are scarce. That is why European countries ran out of them in Libya in 2011. Israel, more eager to conserve its stockpiles than avoid collateral damage, has rained dumb bombs on Gaza.
The exponential growth in the number of Russian and Ukrainian drones points to a second trend. They are inspired by and adapted from widely available consumer technology. Not only in Ukraine but also in Myanmar, where rebels have routed government forces in recent days, volunteers can use 3printers to make key components and assemble airframes in small workshops. Unfortunately, criminal groups and terrorists are unlikely to be far behind the militias.
The reason goes back to consumer electronics, which propel innovation at a blistering pace as capabilities accumulate in every product cycle. That poses problems of ethics as well as obsolescence. There will not always be time to subject novel weapons to the testing that Western countries aim for in peacetime and that is required by the Geneva Conventions.