Skirmishes flare in southern Iraqi town of Zubayr ZUBAYR, Iraq, March 27 (Reuters) - It's only 35 km (20 miles) from Kuwait and almost 600 km (370 miles) from Baghdad, but one week into the invasion of Iraq, it's still not been fully secured by U.S.-British forces. In Zubayr, the nearest Iraqi town to Kuwait, British troops were firing from artillery and machineguns on Thursday. Little puffs of smoke rose over the town, Reuters reporter Rosalind Russell said. "We were targeting some militia who were holed up in a house on the outskirts," said Sergeant Jeremy Rendle, a British tank...