By Nina Chestney, Nigel Hunt and Pratima Desai LONDON (Reuters) – Commodity prices jumped to multi-year highs on Thursday after Russia invaded Ukraine, raising the prospect of tighter supplies due to the possibility of sanctions on Russian exports, transport disruptions and Moscow withholding supplies. Russia launched an all-out invasion of Ukraine by land, air and sea on Thursday, the biggest attack by one state against another in Europe since World War Two. It supplies 10% of the world’s oil, a third of Europe’s gas and, together with Ukraine accounts for 29% of global wheat exports, 80% of …