ATP 3-90.99 — Desert Operations {mctp 12-10d} (this Item Is Published W/ Basic Incl C1)

ATP 3-90.99 governs desert operations, including environmental conditions, combat power, offensive and defensive operations, and stability operations.

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  • Publication number: ATP 3-90.99
  • Title: DESERT OPERATIONS {MCTP 12-10D} (THIS ITEM IS PUBLISHED W/ BASIC INCL C1)
  • Date: 04/07/2021
  • Proponent: T2COM
  • Status: ACTIVE

View ATP 3-90.99 on armypubs.army.mil


It covers desert classifications, weather, terrain, water, equipment, health, operational frameworks, warfighting functions, and desert offensive, defensive, and stability operations. It requires commanders to account for environmental challenges, synchronize fire and maneuver, protect forces, and sustain operations.

Topics covered

  • Desert environment
  • Desert classifications
  • Environmental effects on equipment
  • Multi-domain desert battlefield
  • Desert offensive operations
  • Desert defensive operations
  • Desert stability operations
  • Fratricide reduction

Questions and answers

What makes fratricide more likely during desert operations?

The ability to engage forces at extended range and the lack of easily identifiable terrain features to control maneuver increases the risk of fratricide during desert operations. (paragraph 6-1)

How do commanders address fratricide hazards in desert operations?

Like other risks, commanders use the risk management process to identify fratricide hazards and then develop and implement controls. (paragraph 6-1)

What equipment conditions must Soldiers and Marines keep within safety limits?

Soldiers/Marines ensure that the working pressure and temperatures of all equipment stays within safety limits in accordance with the appropriate technical manual (TM). (paragraph 1-123)

What must commanders consider when planning sustainment in the desert?

Commanders carefully consider tempo when developing their scheme of maneuver and concept of sustainment, ensuring maneuver forces do not outdistance their support and that available forces can secure sustainment assets. (paragraph 3-107)

What does ATP 3-90.99 define as a stability operation?

A stability operation is an operation conducted outside of the United States in coordination with other instruments of national power to establish or maintain a secure environment and provide essential government services, emergency infrastructure reconstruction, and humanitarian relief (ADP 3-0). (paragraph 6-1)

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