NEW DELHI - Singapore Prime Minister Lee Hsien Loong and his British counterpart Rishi Sunak on Saturday declared that their countries’ relations would be upgraded to a strategic partnership that will strengthen existing ties and launch new areas of bilateral cooperation. As part of these enhanced ties, both countries are committed to deepening their economic relationship. “We will strengthen collaboration in traditional areas of trade, investment and finance, explore new frontiers in digital trade and the digital economy, and take steps together to ensure our economies are more resilient,” said PM Lee and Mr Sunak, in a joint statement issued...