Describe and explain what it means when Commanders and Staff analyze the Environmental Effects on Operations of the Intelligence Preparation of the Battlefield (IPB) process. Describe the sub-steps in detail and use example(s) to support your explanation. Select any two of the four listed below to expound upon: Describe how the threat can affect friendly operations Describe how terrain can affect friendly and threat operations Describe how weather can affect friendly and threat operations Describe how civil considerations can affect friendly and threat operations