The notion of protecting the main cities and roads is not new.The Russians fell back on such a strategy in their ill-fated war in Afghanistan of 1979-89.

守卫主要城市以及道路的想法并不新鲜，俄国人在他们所经历的那场不幸的阿富汗战争（1979-1989）中，也曾求助于此类战略；

youdao

The notion of protecting the main cities and roads is not new.The Russians fell back on such a strategy in their ill-fated war in Afghanistan of 1979-89.

守卫主要城市以及道路的想法并不新鲜，俄国人在他们所经历的那场不幸的阿富汗战争（1979-1989）中，也曾求助于此类战略；

youdao