全球前瞻｜普京将于本周召开年度记者会，美政府加强对H-1B签证审查

Group 1 - Singapore's Deputy Prime Minister and Minister of Trade and Industry, Gan Kim Yong, will visit China from December 15 to 16 to co-chair the 21st meeting of the China-Singapore Bilateral Cooperation Committee and other related meetings [1][11] - Russian President Vladimir Putin will hold his annual press conference on December 19, where he will address questions from journalists and the public [4][14] - The U.S. State Department announced that starting December 15, all H-1B visa applicants and their families will undergo expanded social media scrutiny [8][18] Group 2 - Ukrainian President Volodymyr Zelensky is preparing for meetings with U.S. and European allies in Berlin to discuss establishing a foundation for peace [5][15] - The U.S. and Ukraine have made significant progress in discussions regarding a "peace plan" and will meet again on December 15 [6][16] - Zelensky has submitted an updated version of Ukraine's "peace plan," which includes 20 key points for negotiation [7][17] Group 3 - Iran's Foreign Minister, Hossein Amir-Abdollahian, is scheduled to visit Belarus on December 15 and Russia on December 16-17 to discuss bilateral and regional issues, including nuclear matters [2][20] - Recent discussions between Putin and Iranian President Ebrahim Raisi focused on bilateral relations, economic cooperation, and key projects, with an emphasis on maintaining communication regarding Iran's nuclear program [21]