On August 28 Juche 90(2001), Chairman Kim Jong Il went to a post in the forefront and had a friendly talk with its chief officer.
Saying that mosquitos would be a lot there, he explained to officials that soldiers are often so annoyed at mosquitos that they find it difficult to go on sentry. He told that they should send them high quality mosquito-proof creams with long efficacy and convenient for use.
Thus, mosquito-proof creams with long efficacy were supplied to soldiers.
Like this, term of efficacy was extended by the endless loving care of the Chairman for our soldiers.