Ships from the Theodore Roosevelt aircraft carrier strike group and America amphibious assault ship expeditionary strike group sailed together in the South China Sea on Sunday for expeditionary strike force drills, the US Pacific Fleet said on its Twitter account on Monday.
This is the third time in just a week US warships are known to have trespassed into the South China Sea: US guided-missile destroyer McCampbell on March 10 trespassed into China's territorial waters in the Xisha Islands, and amphibious assault ship America and littoral combat ship Gabrielle Giffords sailed in operations in the South China Sea on Friday.
To counter US' repeated trespasses into Chinese territorial waters, the Chinese military has the option of using new approaches, including the deployment of electromagnetic weapons, Song Zhongping, a Chinese military expert and commentator, told the Global Times on Tuesday.
Firing at US warships is not a good choice unless the US fires first, and that would result in the start of a China-US military conflict, Song said, noting that bumping into US ships might also not be a good counter, as lessons have been learned from the Black Sea bumping incident between the Soviet Union and US in 1988.
But the use of electromagnetic weapons, including low-energy laser devices, could be viable, as they can temporarily paralyze US ships' weapon and control systems without visible conflict but can send a strong warning, according to Song.
Electromagnetic weapons can emit electromagnetic waves that can potentially jam electronic devices of target vessels and will not cause casualties, military observers said.
The US accused a Chinese destroyer of using lasers on February 17 on its patrol aircraft near Guam, even though it was the US aircraft that had initially conducted repeated close-in reconnaissance that interrupted the Chinese fleet's normal navigation and training. This is a good example and could be applied more, Song said.
China has undisputed sovereignty over the islands in the South China Sea and nearby waters, and the Chinese military remains highly vigilant at all times. It will take any necessary measure to safeguard national sovereignty, peace and stability in the South China Sea, Li said after that incident.
The PLA has yet to announce its response to the US activities on Friday and Sunday.
This article originally appeared on the Global Times website.