There are at least five reasons why the attack amid the ongoing Russia-Ukraine war changes the rules of battlefield engagement

The rapidly evolving drone technology on display in Ukraine shows the Western way of slow procurement isn't enough, the UK armed forces minister said.

Russia dramatically intensified missile and drone attacks across Ukraine this month in an effort to sap Ukrainians’ morale – but it is also stepping up ground attacks in many areas along the long frontline,

"I’ve known him a long time ... but he’s sending rockets into cities and killing people, and I don’t like it at all," Trump said.

Drone warfare is evolving at a rapid speed, with Ukraine a testing ground for companies to refine their products. Those not there are missing out.