Turn structure
Every month includes a Preparation Period; only certain months also include an Activity Period.
The game calendar is divided into months. Every month includes a Preparation Period, during which scheduled replacements, supply, and reinforcements are received and processed. Only certain months also include an Activity Period. If an Activity Period occurs, it follows the Preparation Period — but only if at least one player is in a position to initiate it. Think of the Preparation Period as the baseline monthly administration, and the Activity Period as the optional operational phase that follows it. Replacements, supply, and reinforcements that coincide with an Activity Period month are still received during the Preparation Period of that month; they do not flow over into the next Preparation Period. See Section 12 (Campaign Sequence of Play, pp. 21–22) for the full sequence.
Turn structure
An Activity Period only occurs in a given month if at least one player is in a position to initiate it.
An Activity Period follows the Preparation Period within the same month, but is conditional: it occurs if and only if one player is in a position to initiate it. If neither player can initiate an Activity Period, the month consists solely of the Preparation Period. Refer to Section 12 for the full campaign sequence of play.
Combat
If the attacker can no longer inflict losses on the defender, the attacker must retreat.
Per rule 5.2 ('When Units Retreat'), if a combat situation is reached where modifiers and lack of troops render fire ineffective for both sides — a stalemate — the attacker must retreat. The defender retains the ground. It is the attacker's responsibility to dislodge the defender; if the attacker cannot inflict losses, the attacker has no choice but to pull back. This is not an optional rule; the attacker must retreat in this situation.
Resource management
Lines of Communication (LOCs) and supply radius are two distinct concepts with different blocking conditions.
LOCs and supply radius serve different purposes and are blocked by different things — this is intentional, not an oversight. The LOC represents whether a unit is cut off from its home base (i.e., encircled and isolated). The supply radius represents whether a unit has a store of supplies within operational range to support its actions. Key differences: (1) Enemy minefields block supply radius tracing but do NOT block LOCs. (2) Desert boxes block LOCs but do NOT block supply radius tracing. These distinctions have significant consequences during the End of Activity Phase, which is resolved British-first, then German.
Resource management
An LOC (Line of Communication) represents a unit's connection to its home base; it is blocked by Desert boxes but not enemy minefields.
A Line of Communication (LOC) determines whether a unit is encircled or isolated from its home base. Desert boxes block LOC tracing. Enemy minefields do not block LOC tracing. A unit without a valid LOC is considered cut off. This is distinct from the supply radius check. See 'LOCs and supply radius' rules for the full distinction.
Resource management
Supply radius determines whether a unit has supplies within range to support operations; it is blocked by enemy minefields but not Desert boxes.
The supply radius determines whether a unit has a store of supplies within sufficient range to support operational activity. Enemy minefields block supply radius tracing. Desert boxes do not block supply radius tracing. This is distinct from the LOC check. A unit may have a valid LOC but still be out of supply radius, or vice versa.
Restriction
There are 6 Allied depots and 5 German depots available; this is a fixed design limit.
The number of supply depots available to each side is fixed: 6 Allied depots and 5 German depots. This is a hard design limit, not a suggestion. It reflects the historical transport, personnel, and logistical cost of establishing supply bases in the desert. Players cannot create or field more depots than this limit. See the last sentence of Section 15.0 for the rule reference.
Resource management
In Rule 10 (supply tracing and restrictions), 'truck' means any truck unit regardless of full/empty status.
Rule 10, which covers supply tracing and truck restrictions (including section 10.2 Restrictions), uses the term 'truck' to refer to truck units in general — both full and empty. The full vs. empty distinction for truck units does not come into play until Rule 15 and the campaign game. Therefore, when Rule 10 references trucks without specifying 'full,' it correctly applies to truck units of either status.