WIFES have become widows, parents long for captured sons, classrooms are empty and farmers can't find the hands to work the land. Unlikely friendships have formed; old ones have fallen apart. Even in the village of Lozuvatka, about 100 km (60 miles) from the frontlines, signs are everywhere of a two-year-old war that has irrevocably changed the face of Ukraine. Alona Onyshchuk and her five-year-old daughter Anhelina visited Lozuvatka's graveyard on a snowswept winter's day. Husband and father Serhii Aloshkin lies there alongside 10 other soldiers in a new section called Heroes' Alley. "We did not expect that there would…