由民族英雄杨靖宇将军率领的东北抗日联军第一军,曾活动于辽宁省宽甸县天桥沟地区并把军部设在这里。其原因在于天桥沟有良好的地理位置和群众基础,同时,这里也是日伪统治力量薄弱的地方,易于开展广泛的抗日游击战争。 The First Army of the Northeast Anti-Japanese Forces, led by General Yang Jingyu, a national hero, once operated in the area of ​​Tianqiaogou in Kuandian County of Liaoning Province and set up the military headquarters here. The reason is that Tianqiao ditch has a good geographical location and mass base, meanwhile, here is also a place where the ruling forces of Japan and the Puppet are weak and is easy to carry out extensive anti-Japanese guerrilla warfare.