Times of Oman
Dec 01, 2015 LAST UPDATED AT 01:40 PM GMT
Japan navy unveils big warship on Hiroshima atomic bombing anniversary
August 6, 2013 | 12:00 AM
Japan Maritime Self-Defense Force's new helicopter destroyer DDH183 Izumo is seen before its launching ceremony in Yokohama, south of Tokyo August 6, 2013. The 19,500-tonne, 248-metres long helicopter destroyer, the largest surface combatant of the Japanese navy, is able to carry seven shipborne helicopters and two rescue/transport helicopters. Photo - Toru Hanai/Reuters

Tokyo: Japan unveiled its biggest warship since World War II on Tuesday, a $1.2 billion helicopter carrier aimed at defending territorial claims, drawing criticism from regional rival China which accused its neighbour of "constant" military expansion.

The ceremony to showcase the 248-metre vessel came as Shinzo Abe's conservative government, which took office last December, considers ditching the nation's pacifist constitution and beefing up the military.

Japan plans to use the helicopter carrier, named Izumo and expected to go into service in 2015, to defend territorial claims following maritime skirmishes with China, which has demonstrated its own military ambitions in recent years.

"We express our concern at Japan's constant expansion of its military equipment. This trend is worthy of high vigilance by Japan's Asian neighbours and the international community," China's defence ministry told AFP.

"Japan should learn from history, adhere to its policy of self-defence and abide by its promise of taking the road of peaceful development."

The unveiling ceremony took place on the 68th anniversary of the US atomic bombing of Hiroshima -- a date clash which Tokyo said was coincidental.

The Japanese-built carrier can accommodate nine helicopters and is expected to play a major role in disaster and rescue missions, as well as defending sea lanes and sovereignty claims, according to the defence ministry.

The navy's biggest vessels currently are a pair of smaller helicopter carriers. 

Less than two weeks ago, the Chinese coastguard entered waters disputed with Japan for the first time, upping the ante in a festering row over ownership of the Senkaku islands, which Beijing also claims and calls the Diaoyus.

The rocky islands are located in rich fishing grounds in the East China Sea and are believed to harbour vast natural resources below their seabed.

The incursion came as Japan's defence ministry recommended establishing amphibious units and acquiring surveillance drones, similar to the US Marines, to protect its claim on outlying islands. Tokyo is also locked in a separate territorial dispute with Seoul.

Japan's well-funded and well-equipped military is referred to as the Self-Defence Forces, and is barred from taking aggressive action. Any move to beef up the military would require constitutional change.

A possible overhaul of the constitution imposed on Japan by the United States and its allies after WWII has stirred strong emotions among Japan's neighbours.

They have long maintained that Tokyo has never come to terms with its militaristic past, including the brutal 1910-1945 occupation of the Korean peninsula.

The ceremony in Yokohama, attended by Deputy Prime Minister Taro Aso, was held as tens of thousands gathered for remembrance ceremonies in Hiroshima to mark the 68th anniversary of the US atomic bombing of the western Japanese city.

Tokyo said the jarring timing was coincidental and that Tuesday had been chosen because of favourable ocean tides and an auspicious date.

Last year, China commissioned its first aircraft carrier as part of a military build-up that has alarmed its own regional neighbours as Washington ramps up a focus on Asia.

The country's first aircraft carrier, the Liaoning, went into service in September in a symbolic milestone for China's increasingly muscular military.

However, the vessel still requires a carrier group including destroyers, frigates and submarines while fighter jets need more training to be operational, according to navy officials.

China has also generated concern with dou

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