Chinese Foreign Minister Wang Yi blames Taiwan for making the call.
The Trump administration informs Congress of a potential $2 billion arms deal with Taiwan that includes the M1A2, the U.S.'s latest main battle tank, and a resupply of anti-air and anti-armor weapons. China's foreign ministry says it is "severely concerned with" and "firmly against" the plan.
U.S. Secretary of State John Kerry and Chinese Foreign Minister Wang Yi agree, on principle, that a strong United Nations Security Council resolution is needed regarding North Korea's nuclear test earlier this month.
The United States announces a deal to sell $1.83 billion worth of arms to Taiwan, which includes two decommissioned U.S. Navy frigates, Assault Amphibious Vehicles, and surface-to-air missiles. China has also expressed its disapproval over the deal, claiming it would affect their internal affairs.