The White House is moving forward with three sales of advanced weaponry to Taiwan, sending in recent days a notification of the deals to Congress for approval, five sources familiar with the situation said on Monday.

The move in the run-up to the Nov. 3 U.S. election, first reported by Reuters, is likely to anger China, which considers Taiwan a wayward province that it has vowed to reunite with the mainland, by force if necessary.

Reuters broke the news in September that as many as seven major weapons systems were making their way through the U.S. export process as the Trump administration ramps up pressure on China.