The end of the cold war , which opened the way for new transpolar routes overflying russia , along with the development of ultra long - haul aircraft , has created new opportunities for non - stop services between asia and north america 冷战的结束打通了经过俄罗斯领空并飞跃北极的新航线，再加上超远程飞机的发展，这都为亚洲和北美洲间的直飞服务创造了新机会。
