SEOUL: South Korean government said on Sunday that it would rename peaks on islands disputed with Japan in an attempt to reassert its sovereignty over the territory after a decades-long dispute flared up again this summer.

The two main peaks at the rocky outcrops roughly midway between the two nations will be renamed to highlight historical evidence of the South’s centuries-long ownership, the land ministry said.

The row over the Seoul-controlled islands-called called Dokdo in Korea and Takeshima in Japan—boiled over in August when the South’s President Lee Myung-Bak made a surprise visit to them.

Tokyo officials said that the trip to the islands, the first ever by a South Korean president, was deliberately provocative.

One of the two peaks will be named “Usan” after its ancient title dating back to the Joseon dynasty that ruled Korea from 1392 to 1910, the ministry said in a statement.

The other will be named “Daehan”, South Korea’s official name in Korean. The peaks were previously called the East and the West hills.

“The move is aimed at firmly asserting our territorial sovereignty over Dokdo,” said the ministry.

School textbooks, official maps and major Internet websites would use the new names beginning on Monday, it said.

The recent flare-up prompted Seoul to lash out at Google after the US online search engine changed the name of the islands on its web mapping service.

Google recently updated its Google Maps and—on the English-language version—replaced the name of Dokdo with Liancourt Rocks, a name taken from a French whaling ship that came close to being wrecked on the islets in 1849.

The South’s foreign ministry called the move “unacceptable” and protested to Google against the change.

Japan is also embroiled in a separate row with China over a different set of disputed islands, in the East China Sea.