ANDREA SHALAL and KOPANO GUMBI U.S. Treasury Secretary Janet Yellen lauded South Africa's "bold" participation in an energy transition partnership backed by the United States and other Western nations but steered clear of mentioning U.S. concerns about Pretoria's planned military drills with China and Russia. She welcomed Godongwana's "cooperation and insightful views" in their previous discussions and said she would raise several issues, including Zambia's stalled sovereign debt restructuring effort, given South Africa's key role on the country's creditor committee. "The United States strongly values our relationship with South Africa," Yellen said in remarks that included no mention of Russia…