(Reuters) – Indonesia wants to hold regular military exercises with the United States near the sparsely populated Natuna archipelago, an area of the South China Sea near China’s claims, a navy spokesman said on Monday.

Although Indonesia is not a claimant in the South China Sea, the military has accused China of including parts of Natuna within its so called “Nine-Dash Line,” the vague boundary used on Chinese maps to lay claim to about 90 percent of the sea.

The United States, which raised concerns on Friday about China’s rapid reclamation of reefs in the area, held a joint military exercise over the weekend with Indonesia in Batam, about 300 miles (480 km) from Natuna.

“It was the second joint exercise we have conducted with the United States in that area and we are planning another one next year. We want to make it routine in that area,” said Indonesia Navy spokesman Manahan Simorangkir.

Read more: http://www.reuters.com/article/2015/04/13/us-indonesia-us-southchinasea-idUSKBN0N40O320150413