Language.
Skills.
Psychology.
These are the three major barriers for Zhongyu Special Guard's overseas deployment employees. The first two are actually not a big problem; language doesn't need to be fluent, just some daily usage is enough, and you can learn more on the job.
Skills are simple too.
As long as you're willing, you can learn them, but the third is hard to say.
Security Guard.
Bodyguard.
Domestically, there's almost no danger.
But it's different abroad.
Encountering it becomes a matter of life and death. Some people can adapt quickly—if you hit me, I won't hold back either—but for some, using weapons against people poses a huge obstacle.
Even if it's an Enemy.
Therefore.
This barrier is both the easiest and the hardest.
...
On the Playground.
Several squads sweat profusely.
Ten thousand meters a day.
Quite stimulating.
