Ukraine war: Nato pledges to provide more weapons and fix power grid- PublishedNato has pledged to give more weapons to Ukraine and help fix critical energy infrastructure badly damaged by massive Russian missile and drone strikes.Under the Geneva conventions, attacks on civilians, or the infrastructure vital to their survival, could be interpreted as a war crime.At a gathering in Berlin, justice ministers of the G7 group of wealthy nations said they would co-ordinate investigations into alleged war crimes committed in Ukraine.Russian President Vladimir Putin - who ordered a full-scale invasion of Ukraine on 24 February - and other senior Kremlin officials deny the allegations that Russian troops are committing war crimes.In a separate development on Tuesday, Ukraine's First Lady Olena Zelenska told lawmakers in the UK Parliament in London that Ukrainians were going through a terror similar to that experienced by the UK in World War Two, when Nazi Germany bombed cities in the blitz."