"Taiwan is an inalienable part of China, and our operation aims to safeguard peace and stability in the Taiwan Straits. This marked a record-breaking number in terms of PLA aircraft detected in the region, media on the island said. The intensity of the drills surpassed, or was at least comparable with the peak number during the PLA drills in August in response to Pelosi's provocative visit on August 2, if taking vessels into account, observers said. On August 5, Taiwan's defense authority reported sighting 68 PLA aircraft and 13 PLA vessels, and on August 7, it reported 66 PLA aircraft and 14 PLA vessels. The US' financing of weapons to Taiwan island is a serious provocation that has crossed the bottom line, and the PLA's drills were a response that showed its strong will and capability, Fu said.