President-elect Joe Biden’s pick to be his ambassador to the United Nations in New York will have to tackle Washington’s waning leadership at the world body in the face of a more assertive China, diplomats and analysts said on Monday. Biden nominated veteran U.S. diplomat Linda Thomas-Greenfield and restored the post to a Cabinet role. If confirmed by the U.S. Senate, Thomas-Greenfield would succeed President Donald Trump’s two U.N. envoys - first Nikki Haley, who was in the Cabinet and later Kelly Craft, who was not. Both had little foreign policy experience before taking up the role. Thomas-Greenfield is a 35-year veteran of the U.S. Foreign Service who has served on four continents, perhaps most notably in Africa. “My mother taught me to lead with the power of kindness and compassion to make the world a better place. I’ve carried that lesson with me throughout my career in Foreign Service – and, if confirmed, will do the same as Ambassador to the United Nations,” Thomas-Greenfield tweeted on Monday. Thomas-Greenfield, who is Black, described last year how that approach helped her when she was a U.S. diplomat in Rwanda during the April 1994 genocide and faced a “glazed-eyed young man” who had mistaken her for a woman that he had been sent to kill. “I looked that young man in the eye and I asked him his name. And I told him mine. ... If he killed me, I wanted him to know the name of the person he’d killed,” she said during a presentation. “I used the power of kindness and compassion and I would survive.” Thomas-Greenfield served most recently as the assistant secretary of state for Africa during President Barack Obama’s administration, leading U.S. policy toward sub-Saharan Africa during tumultuous events such as the West Africa Ebola outbreak. ‘GRINDING WORK’ If confirmed, she would join counterparts with decades of experience in international diplomacy from Britain, France, China and Russia - which along with the United States - make up the U.N. Security Council’s permanent five veto-wielding members. “The billion-dollar question hanging over the U.S. at the U.N. is if Thomas-Greenfield can contain China’s rising influence in the organization, which Trump’s slash-and-burn approach to multilateralism has signally failed to do,” said Richard Gowan, International Crisis Group U.N. director. “That will involve a lot of grinding work to increase trust with non-Western diplomats,” he said. Beijing has been pushing for greater multilateral influence in a challenge to traditional U.S. leadership and tensions between the two superpowers have hit a boiling point at the United Nations over the deadly coronavirus pandemic. China and the United States “working together to promote a bigger role of the U.N. in addressing global challenges is not only what the world wants but also in the common interests of the two countries,” a Chinese diplomat, speaking on condition of anonymity, told Reuters on Monday. Health Organization, pull out of the U.N. Human Rights Council, the U.N. cultural agency UNESCO and a global accord to tackle climate change. Jeffrey Feltman, a veteran U.S. diplomat who was U.N. political affairs chief from 2012 to 2018, described Thomas-Greenfield as “tailor-made for the type of diplomacy we need today to restore U.S. leadership and rebuild multilateral alliances to meet today’s global challenges.” U.N. diplomats broadly welcomed Biden’s announcement. “A woman of color, a woman of substance and a woman of experience. She will be a tremendous asset to the U.N. and a partner for all of us, I am sure,” said a senior Asian diplomat, speaking on condition of anonymity. A senior Gulf diplomat, also speaking on condition of anonymity, said Thomas-Greenfield’s appointment was a “strong and welcome signal of the incoming administration’s commitment to the U.N. and to multilateralism.” “Active American leadership is particularly important now as the world faces a range of transnational challenges like COVID, economic shocks and climate change,” the diplomat said.