THE RISING EAST

By Richard Halloran

The incursion of a Chinese nuclear-powered submarine into Japanese territorial waters in mid-November has illuminated a mounting competition under the surface of the Pacific and Indian oceans and nearby seas.

The chief rivals for submarine supremacy in this region are China, which has given priority to submarines as it acquires a blue-water or deep-sea navy, and the United States, which is rebuilding submarine capabilities that had atrophied after the Cold War.

China and the United States are not alone. North Korea has a sizable coastal submarine force, and South Korea has begun to counter it. Japan has a modest but proficient fleet. Taiwan is pondering the procurement of eight subs that would triple the size of its force. Singapore has three submarines and is acquiring a fourth. Australia has six modern submarines based on a Swedish design for surveillance in the Pacific and Indian oceans.

In South Asia, India has been acquiring a submarine fleet with Russian help. A specialist on South Asia, Donald Berlin of the Asia-Pacific Center for Security Studies in Honolulu, has written that India will also build six to twelve French-designed submarines and is working on a nuclear-powered sub that will go to sea in 2006.

Pakistan has launched two submarines and is building a third. Berlin says "Pakistan will likely want a submarine-based nuclear weapons delivery system" to deter India. Iran has several submarines. Even Israel, usually considered a Mediterranean nation, is believed to have sent submarines armed with cruise missiles through the Red Sea into the Indian Ocean to deter a potential nuclear attack by Iran.

In contrast, Russia, which once deployed 90 submarines into the Pacific, has laid up all but 20 because of that nation's financial distress. "They've held on to their more capable boats," said a U.S. official with access to intelligence reports, but their operations are constricted.

The Chinese submarine in Japanese waters was one of five Han-class boats, the first of China's nuclear-powered submarines. After it left port at Ningbo, it was detected by Taiwan as it steamed east, then by the United States near Guam, and finally by Japan after it turned north to steam near Okinawa.

After a Japanese protest, Chinese spokesmen expressed regrets and blamed the mistake on unexplained "technical difficulties," raising questions about Chinese seamanship. The Chinese have long had problems operating submarines.

China is acquiring submarines to "patrol the littorals, blockade the Taiwan Strait, and stalk (U.S.) aircraft carriers," say two researchers, Lyle Goldstein and Bill Murray, at the Naval War College in Rhode Island.

China, which has 50 submarines in two older classes, began expanding 10 years ago when it bought four Russian "Kilo" submarines, then ordered eight more in 2002 for delivery starting in 2005. The Chinese are producing the Song-class of attack boats armed with cruise missiles. Training has been intensified throughout the fleet.

It is in the Taiwan Strait that Chinese and U.S. submarines would most likely clash if China seeks to blockade or invade Taiwan, the island over which it claims sovereignty but whose people prefer to remain separate.

American submarines would go into action because Taiwan lacks sufficient anti-submarine weapons to break a blockade or stop an invasion. U.S. policy is to help defend Taiwan from an unprovoked assault by China.

In the United States, the commander of the Pacific Fleet, Adm. Walter Doran, has made the revival of submarine warfare his priority and has set up a special staff to oversee that resurgence. The Navy has recently established an anti-submarine warfare center in San Diego to improve training and readiness.

The United States has moved two submarines from Hawai'i to Guam and will add a third to base them closer to operating areas. Where 60 percent of U.S. submarines operated in the Atlantic during the Cold War and 40 percent in the Pacific, the Navy is planning to reverse that ratio.

Attack submarines whose mission after the Cold War was to launch cruise missiles at land and sea targets and to gather intelligence have been assigned anew the task of fighting other submarines because the best anti-submarine weapon is another submarine.

Six SURTASS ships (Surveillance Towed-Array Sensor System) that use powerful sonar to detect submarines in vast areas of deep water have now been assigned to the Pacific. Four ballistic-missile submarines are being converted to carry 150 cruise missiles each and to infiltrate 100 commandos onto hostile beaches.

Concluded a U.S. official: "Once again, the value of stealth is being recognized."

Richard Halloran is a Honolulu-based journalist and former New York Times correspondent in Asia. He wrote this article for The Advertiser.