Japanese Prime Minister Shinzo Abe vowed on Friday that he would not “tolerate” any challenge to Japanese control over the contested Diaoyutai Islands (釣魚台), which are called the Senkakus in Japan and are also claimed by Taiwan, after China’s growing incursions into the area.

“We simply cannot tolerate any challenge now and in the future. No nation should make any miscalculation or underestimate the firmness of our resolve,” Abe said at the Center for Strategic and International Studies in Washington.