China announced today, Thursday, that it is "at a high level of constant readiness" after a day in which two military ships, Canadian and American, passed through the Taiwan Strait for the second time in two months.

The USS Rafael Peralta, an Arleigh Burke-class destroyer, and the Canadian frigate HMCS Ottawa conducted a routine passage through the strait on Wednesday, according to the US Navy.

The latest move was described as just noise, with claims that the Chinese naval and air forces fully followed their course.

The passage of these two ships comes after two warships belonging to the United States and Canada took this narrow maritime route separating the island from mainland China on September 9.

Freedom of navigation...

Washington and its Western allies have increased transit operations through this strait as part of freedom of navigation for warships, to remind people that these are international waterways, which angered Beijing.

The US Seventh Fleet said in a statement that the transit was conducted according to international law and through a passage in the strait located outside the territorial sea of any coastal state.

Also, the Taiwanese Defense Ministry said on Thursday that it monitored this crossing from Wednesday night to Thursday, but confirmed that the situation is normal.

Beijing considers Taiwan a province that has not yet been reunified with the rest of its territory since the end of the Chinese Civil War in 1949.

As such, the Chinese government does not recognize the Taiwan Strait as part of international waters.

Also in September, China sent 103 aircraft around Taiwan within 24 hours, which Taipei described as a recent record number.

Beijing has intensified its threats and political and economic pressures on Taiwan since President Tsai Ing-wen came to power in 2016.