About 1,330 personnel, four naval vessels and aircraft from Japan's three services will be involved in exercises in the Amami group of islands and in waters east of Okinawa, the defence ministry said in a press release, adding they were intended to bolster Japan's ability to "defend islands".
The statement was issued yesterday hours after China's state media, quoting the country's defence ministry, said the Chinese and Russian navies will stage joint exercises "off Shanghai" in late May.
Today, three Chinese coastguard ships sailed inside territorial waters off the disputed islands for about three hours, being chased by Japanese patrols.
It was the third such incursion since US President Barack Obama vigorously reasserted on April 24 that Washington would defend Japan under a bilateral military treaty if China initiated an attack in the tense dispute.
China has already dismissed Obama's position, saying that the islands are "China's inherent territory".
The Japanese landing drills "to defend and recapture islands" run from May 10 to 27 and will focus on the tiny uninhabited isle of Eniya off Amami Oshima island, according to media reports.
"The Defence Ministry has been strengthening the capabilities of amphibious operations in response to China's maritime advances," the Kyodo news agency said, "and the landing drills in the Amami islands are seen as a move to keep China in check".
