well, as we ve said, russia s invasion hasn t exactly gone to plan and increasingly moscow has turned to a war of attrition. no city has suffered more than the port city of mariupol in the south, which has been virtually destroyed. residents are facing a lack of food, water and electricity. and now ukrainian officials say they believe around 300 people died when russia bombed the city s theatre last week. the attack was shocking, not least because the words children were written out in giant letters outside to signal civilians were sheltering there. 0ur correspondent wyre davies reports from southern ukraine. sergey scans the endless flatlands of southern ukraine the rich, fertile farmland that russia wants for itself. the 62 year old former fire engine driver never envisaged taking up arms against the might of moscow, but he knows full well what the russian army is capable of doing. translation: we can t see mariupol, | but we know what s happening there, | and we must not let