海角大神

Despite tough talk from President Barack Obama, the United States and its allies have limited options if North聽Korea聽goes ahead with its planned long-range rocket launch in mid-April.

Washington is likely to take the matter to the U.N. Security Council, analysts say, and could tighten its already tough sanctions. Such efforts would struggle without support from China, which can be expected to resist any moves that might threaten the stability of its neighbor.

There also is deep uncertainty about where turning the screw further on North聽Korea聽would lead. After the Security Council condemned its previous long-range rocket launch in 2009, North聽Korea聽responded by kicking out U.N. nuclear inspectors, pulling out of aid-for-disarmament negotiations and conducting its second detonation of an atomic device.

"At minimum, there has to be a statement of criticism" at the Security Council, said Gordon Flake, a Washington-based聽Korea聽analyst. "The question is how North聽Korea聽will react, and history suggests it won't react well."

The stakes are higher than they were in 2009 as the potential for tensions on the Korean peninsula to escalate into conflict are greater now than they were then.聽 South聽Korea's聽government came under heavy domestic criticism for what was seen as a weak response to a North Korean artillery barrage that killed four people on a front-line island in 2010. Earlier that year, North聽Korea聽was believed to have torpedoed a South Korean warship, killing 46 sailors. The North denied responsibility.

North聽Korea聽says the missile launch is intended to place an observation satellite into orbit. But the U.S. and others view the launch as a cover for a test of an intercontinental ballistic missile that one day could carry a nuclear warhead.

Crucially for Washington, if the three-stage Unha-3 rocket works, it could demonstrate that North聽Korea聽has parts of the United States in its missile range.

The launch would violate both a U.N. ban and an accord the impoverished country reached with Washington on Feb. 29, under which it would freeze nuclear activities and observe a moratorium on nuclear and long-range missile tests in exchange for 240,000 metric tons of food aid.

The launch plans, disclosed a little more than two weeks after the accord was announced, undermined what little faith Washington and Seoul had in North聽Korea's聽sincerity about talks on its nuclear program. It also all but squashed the fleeting prospect that the nation would change after the December death of longtime ruler Kim Jong Il.

Obama, facing re-election and accused by opposition Republicans of naivete for reaching out to North聽Korea, pointedly visited the heavily militarized Korean border last week during a trip to South聽Korea聽for a nuclear summit. North聽Korea's聽new leader, Kim Jong Un, previously had made the visit from the northern side.

Obama implored the North's leaders "to have the courage to pursue peace," but warned that unless they changed their ways, the country would face "more isolation." But neither he nor other administration officials have said what steps the U.S. will take should North聽Korea聽launch the missile.

The U.S. and allies including Japan and South聽Korea聽could seek to clamp down further on the North's illicit weapons trade and impose additional financial and banking restrictions that have hurt North聽Korea聽in the past.

"The U.S. is highly likely to unveil another round of sanctions to send a clear political message to NorthKorea," said John Park, a Northeast Asia specialist at Harvard University's Belfer Center.

Fears about the launch have spread farther afield than previously. The Philippines has expressed concern about falling debris. Indonesia says the launch would undermine regional stability. Russia and China, which have long-standing ties with the North 鈥� also have urged Pyongyang to rethink its plans. Vietnam has urged North聽Korea聽to comply with Security Council resolutions

The breadth of criticism reflects not just recognition that the launch would violate U.N. resolutions, but that this rocket, unlike previous launches, will head not eastward over Japan and into the relatively empty Pacific but toward busier waters off Southeast Asia.

Washington is urging China 鈥� North聽Korea's聽most important ally and trading partner 鈥� to nudge its neighbor into line, but the prospects appear slim. North聽Korea聽has promoted the launch as a sign of the nation's strength and progress as it marks the centennial of the birth of its founder, Kim Il Sung. Recent satellite imagery showed preparations under way at the launch site.

The launch also may be an effort to consolidate the authority of Kim's grandson, Kim Jong Un, who is establishing a third generation of dynastic rule.

Park said that while China is doubtlessly frustrated by the North's conduct and has made a stronger public statement than it did before the 2009 launch, its ultimate concern will be to preserve the still-fragile government of Kim Jong Un and prevent a regime collapse on its own frontier.

He also doubted that Washington would risk its own relations with China by taking a new step: penalizing Chinese companies that do business with North聽Korea.