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Table of




Subcourse EN5485


United States Army Engineer School
Fort Leonard Wood, Missouri 65473

9 Credit Hours

Edition Date: 1 May 1995



This subcourse addresses the doctrinal principles of countermobility operations. As an engineer, you must understand the basic principles for planning, executing, and destroying obstacles. You must also be able to plan and integrate obstacles and make accurate recommendations to the maneuver commander.

Lesson 1 describes the modern battlefield and what you as an engineer can expect from threat forces and their engineers during battle. This lesson also briefly covers United States (US) offensive, defensive, and retrograde operations and how denial operations complement each of these operations.

Lesson 2 introduces combined arms obstacle operations. It includes definitions, types of obstacles, and the doctrinal principles associated with producing, employing, and integrating obstacles.

Lesson 3 addresses engineer obstacle and survivability planning. It includes measures for developing an obstacle plan and making recommendations to the maneuver commander at brigade, task force (TF), and company levels. The primary focus is on obstacle intent direct and indirect-fire analysis, obstacle synchronization, and integration of survivability effort into the obstacle plan.

Lesson 4 addresses the doctrinal principles for planning integrating, and executing situational obstacles to support offensive and defensive operations.

The lessons in this subcourse reflect the doctrine which was current at the time it was prepared. In your own work situation, always refer to the latest official publications.

Unless otherwise stated, the masculine gender of singular pronouns is used to refer to both men and women.


ACTION: Identify the procedures for planning obstacle and survivability operations and for making accurate denial-operation recommendations to the maneuver commander at brigade, TF, and company levels.
CONDITION: Given the material contained in this subcourse.
STANDARD: To demonstrate proficiency, you must attain a minimum score of 70% on the examination at the end of the subcourse.


Table of Contents

Subcourse Overview
Lesson 1: Combined Arms Obstacle Operations
  Part A: Threat Engineer Operations
  Part B: US Engineer Countermobility Operations
  Practice Exercise
Lesson 2: Engineer Obstacles
  Part A: Obstacle Categories
  Part B: Guidelines of Tactical Obstacle Employment
  Practice Exercise
Lesson 3: Obstacles and Survivability Planning
  Part A: Fundamentals of Obstacle Planning
  Part B: The Obstacle Planning Process
  Practice Exercise
Lesson 4: Situational Obstacle Planning
  Part A: Situational Obstacle Assets and Characteristics
  Part B: Situational Obstacle Planning Process
  Practice Exercise
EN5485 Edition B Examination
Appendix A: List of Common Acronyms
Appendix B: Recommended Reading List