BRUSSELS, Nov 23 (Reuters) - Europe's biggest cities will donate power generators and transformers to help Ukrainians get through the harsh winter ahead, as part of a drive launched on Wednesday.Moscow says the aim is to reduce Kyiv's ability to fight and push it to negotiate."Ten million Ukrainians are currently without electricity as a result of Russia's attacks on critical civilian infrastructure," European Parliament President Roberta Metsola told a news conference on the "Generators of Hope" campaign.The cities will be urged to provide generators to keep energy running at essential facilities in war-buffeted Ukraine, including hospitals, schools, water supply facilities, relief centres, shelters, and mobile phone masts.Asked to estimate the number of generators that would be donated, he said it could potentially run to several hundred, including industrial-sized generators."