High-level delegations from the United States and China are to meet in London to try to save a fragile tariffs deal and avert a possible trade war that has already roiled the global economy and sparked fears of recession.

President Trump's top economic advisors will meet with Chinese trade representatives in London on Monday for a fresh round of trade talks. Senior fellow at the Yale Law School's Paul Tsai China Center Samm Sacks explains what both sides will want to gain from the discussions.