A senior Japanese ruling party lawmaker said Wednesday he expressed concern over the breach of Japan’s airspace by a Chinese military plane earlier this week and asked China’s No. 3 leader Zhao Leji to ensure such incidents are not repeated. Toshihiro Nikai, a heavyweight in the ruling Liberal Democratic Party who is leading a cross-party group of Japanese lawmakers, told reporters after meeting with Zhao at the Great Hall of the People in Beijing that the top Chinese legislator explained that the incident was “not intentional.” The unprecedented airspace breach on Monday triggered an outcry f…