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Could someone kindly advise the meaning of this expression?

Here is an example:

To provide mission wide leadership on food, agriculture, natural resources and related issues based on sound public policy, the best available science and efficient management of government resources.

Thanks!
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Mission wide presumably means throughout the mission (perhaps as in an evangelical mission or a broad government project?). I need a bit more context to understand what is going on precisely.
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A hyphen is usually necessary for clarity:
mission-wide
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Comments  
It seems to be an USDA site in Chinese:
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Mission Statement

Expand export opportunities for U.S. agricultural, fishery, and
forestry products. To provide mission wide leadership on food,
agriculture, natural resources and related issues based on sound
public policy, the best available science and efficient management of
government resources.

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