Adaptive thinking is the ability to maintain intent and action when the plan disintegrates. No plan survives first contact; what survives is the subordinate's decision system. This chapter defines disciplined improvisation, judgement under uncertainty and the limits of initiative.
Plan disintegration
A plan is a hypothesis about the future that becomes obsolete the moment it executes. Disintegration is not a planner's failure: it is a feature of combat. The right question is not 'how do we avoid disintegration' but 'what remains when the plan fails'. Answer: commander's intent, victory conditions, available resources.
- The plan defines the reference, not the execution
- Intent survives disintegration, the plan does not
- Victory conditions are the criterion for choosing between options
- Available resources are the only remaining material constraint
Modern planning includes branches (deviations from the main plan against specific anticipated events) and sequels (continuations after a phase completes). A branch is 'if X happens, do Y'. A sequel is 'after completing A, consider B or C'. Branches and sequels are pre-thinking that reduces required improvisation.
Disciplined improvisation
Disciplined improvisation is not free creativity: it is the application of known principles to new situations, within explicit constraints. Three criteria of discipline: coherence with intent, acceptability of risk, communicability of decision. An action that fails these three filters is not disciplined improvisation — it is personal gamble.
- Coherence: does my action still advance the commander's intent?
- Risk: is the risk assumed proportionate to the expected benefit?
- Communicability: can I describe the decision to the commander without justifying myself?
- Reversibility: can I undo the decision if it proves wrong?
- Time: do I have time to consult, or must I decide now?
Judgement under uncertainty
Judgement is the competence that distinguishes veteran from novice: the ability to estimate probabilities from incomplete data and act accordingly. It is built by three mechanisms: repeated exposure to real situations, systematic debrief of past decisions, reliable feedback on outcomes. Without all three, accumulated experience becomes noise.
| Decision type | Approach | Typical mistake |
|---|---|---|
| Reversible, low stakes | Decide fast, correct later | Over-consulting |
| Reversible, high stakes | Briefly consult, decide | Deciding alone |
| Irreversible, low stakes | Use standard procedure if any | Improvise instead |
| Irreversible, high stakes | Time for analysis, multiple options | Deciding hastily |
Uncertainty is not an excuse for paralysis. When information is missing, the preferred action is the one preserving future options. When information is missing and time is not available, the preferred action is the one protecting personnel.
Limits of initiative
Initiative has explicit boundaries. The subordinate may improvise within their level, but cannot change the mission, redefine victory conditions, engage out-of-ROE targets, or commit higher-echelon resources without authorisation. When a required decision exceeds these boundaries, the rule is: communicate, recommend, wait. Never decide unilaterally on what belongs to the commander.
- Improvise WITHIN your own level — always allowed
- Change your own task — only if intent requires and no time
- Change the team's mission — never without authorisation
- Change ROE — never
- Engage unplanned targets — never without authorisation
- Commit unassigned resources (arty, aviation) — only through channel
Common mistakes
- Confusing 'plan failed' with 'mission failed' — intent survives
- Treating improvisation as a license for uncommunicated individual action
- Sticking to the original plan when its underlying conditions have changed
- Deciding beyond your level because 'the commander does not respond'
- Ignoring prepared branches and improvising instead — wasted planning
- Communicating the initiative taken only after the operation — the commander must know during
Lessons learned Ukraine
Ukrainian units document a constant phenomenon: the assault plan disintegrates within 15 minutes of crossing the line, due to artillery, FPV or unexpected enemy reaction. Units that win are those where every squad leader knows the three things that do NOT change (the objective, the time limit, the rule of engagement on civilians) and improvises everything else. Units that lose are those that try to rebuild the original plan instead of adapting to what is actually possible.