A Dutch naval ship, HNLMS Tromp, was circled by two Chinese fighter jets in the East China Sea, while a Dutch helicopter was approached by two Chinese fighters and a Chinese helicopter in international airspace. The incident occurred during a patrol in support of a multinational UN coalition enforcing maritime sanctions against North Korea. Tensions in the East China Sea have been escalating, with Japan recently protesting the entry of four Chinese ships into Japanese territorial waters around the disputed Senkaku islands, which China also claims [885151f1].