MCO 1500.55 - Military Thinking And Decision Making Exercises

Scope

MCO 1500.55 directs Military Thinking and Decision Making Exercises across the Marine Corps. The order was signed 1997-04-12, and the source PDF is on file from the 2026-04-28 archive snapshot. The opening section states the purpose.

To implement Military Thinking and Decision Making Exercises throughout the Marine Corps.

Audience

• Commanders and unit leaders. The order directs implementation of decision making exercises throughout the Marine Corps.
• Trainers and small unit leaders who build military thinking and decision making into unit training.
• Readers of the portal's marine education pages, where the order appears in reference lists and authority lines.

Content scope

MCPEL lists the title as MILITARY THINKING AND DECISION MAKING EXERCISES with a publication date of 1997-04-12. Repo evidence names no chapters, enclosures, or specific exercise requirements beyond the implementation purpose above.

Operative content

• The portal asserts no specific rules from this order. It appears as a listed authority, not as the source of a stated requirement.
• The education services and resilience page lists the order in its authority line beside MCO 1700.31, DoDI 1322.25, and MCO 1730.6.
• The Marine Corps University page and the MarineNet and distance learning page list the order in their reference blocks beside MCO 1553.4 and MCO 1553.1.

Connection to higher policy

Repo evidence names no statutory, DoD, or SECNAV parent for this order.

Connection to Marine Corps doctrine and lower policy

Portal reference lists pair the order with MCO 1553.4 Professional Military Education, MCO 1553.1 The Marine Corps Training and Education System, MCO 1700.31, and CJCS Instruction 1800.01. All three citing pages sit in the marine education parent group.

Status

Signed 1997-04-12. MCPEL lists the order with status New, article 898778. The external link opens the official landing page for the current version. The citing portal pages label the order Marine Corps Training and Education, a label in conflict with the MCPEL title Military Thinking and Decision Making Exercises. Verify the intended source and the order's currency before citing it as an education program authority.