Valentyna Polishchuk/Global Images Ukraine via Getty Images
- Russia last winter hit Ukraine's energy infrastructure, causing devastation but no strategic win.
- It has recently pivoted to attacking Ukraine's defense industry.
- The new strategy is a lot more concerning for Ukraine, experts told Business Insider.
Russia has changed its longstanding missile strategy to one that could have worse effects for Ukraine's effort on the battlefield, experts say.
During its full-scale invasion of Ukraine, Russia has used its guided missiles to knock out the heating and electrical systems Ukrainians need to get through the winter.