The U.S. plans to sell $1.4 billion in arms to Taiwan. China is strongly opposed to the move. If the sale goes through it could harm U.S.-Chinese relations.
Reuters reports the State Department said the weapons package will include high speed anti-radiation missiles, torpedoes and technical support for early warning radar.
The Associated Press reports lawmakers have 30 days to object to the deal.
This would be the first arms sale to Taiwan under Trump. The Obama administration sold $1.83 billion in arms to the island country in 2015.