Necessary Conditions for Fire Attack-Sun Zi

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Necessary Conditions for Fire Attack by Sun Zi

English: To launch attacks by fire, one must possess the necessary condition. The materials and equipment needed to start and use a fire must be available at all times. There are opportunistic times for launching attacks by fire. There are also suitable days to start a fire. Opportunistic time refers to periods of dry and hot weather. Suitability of days refers to the location of the moon in relation to the four positions of the stars among the constellation. These four positions of the moon and stars among the constellation signals the days on which strong winds will arrive.

Modern: 实行火攻要具备一定的条件，这些条件都要在平时就有所准备。点火要选择一定的天时和日子。天时，要选择气候干燥的天气。日子，要选择月亮行经箕、壁、翼、轸四个星宿的时候。月亮行经这四个星宿的时候，就是起风之日。

Original: 行火必有因，烟火必素具。发火有时，起火有日。时者，天之燥也。日者，月在箕、壁、翼、轸也。凡此四宿者，风起之日也。

Business Application:

From: Sun Zi Art of War Chapter 12