A senior US official has accused Russia of driving food shortages in Yemen and around the world, suggesting Moscow is to blame for rapidly rising prices. The Kremlin rejected the charge, instead citing American sanctions as a leading cause of starvation. In an address at the United Nations headquarters in New York on Thursday, US Ambassador to the UN Linda Thomas-Greenfield attempted to tie Russia’s attack on Ukraine to Yemen’s dire hunger crisis. “The World Food Program’s March report identified Yemen as one of the countries most affected by wheat price increases and lack of imports from Ukraine. This is...