Regarding whether a defender can use the two-dice rule or re-roll mechanics, the official rules specify that the 'Advantage when attacking' rule is strictly for the attacker. While an attacker may use a RISK card to re-roll any one die during a battle involving a territory shown on their card, the rules explicitly state: 'You may not use a RISK card in this manner when defending a territory.' Furthermore, the standard dice mechanic allows a defender to roll either 1 or 2 white dice, provided they have at least 2 armies on the territory under attack. This is a standard combat mechanic rather than a card-based advantage.
Step-by-Step
Step 1: The attacker announces the territory they are attacking from and the target territory.
Step 2: Both players announce the number of dice they intend to roll.
Step 3: The attacker rolls 1, 2, or 3 red dice (must have at least one more army than dice rolled).
Step 4: The defender rolls 1 or 2 white dice (must have at least 2 armies to roll 2 dice).
Step 5: Compare the highest dice; if the attacker's is higher, the defender loses an army. If the defender's is higher, the attacker loses an army.
Step 6: If both rolled more than one die, compare the next-highest dice and repeat the process.
Example Play Situation
Alice is attacking Bob's territory in North Africa. Alice rolls 3 red dice and Bob rolls 2 white dice. Alice rolls a 6 and a 4, while Bob rolls a 5 and a 2. Since Alice's highest die (6) is higher than Bob's highest die (5), Bob loses one army. However, Alice cannot use a RISK card to re-roll her dice because she is the attacker, and Bob cannot use such a card to defend.
Common Misconceptions
Thinking the 'Commander' rule (changing a die to a 6) can be used during defense.
Assuming RISK cards can be used to re-roll dice when defending a territory.
Believing a defender can roll 2 dice if they only have 1 army present.
Quick Reference
You Can
You Cannot
Roll 1 or 2 dice if defending with 2 or more armies
Use a RISK card to re-roll dice while defending
Use a RISK card to re-roll one die when attacking
Roll more than 3 dice as an attacker
Compare highest dice to determine casualties
Roll 2 dice as a defender if you only have 1 army
Frequently Asked Questions
What is the official rule for defending in Risk?
Defenders roll 1 or 2 dice if they have at least 2 armies on the territory.
Can I use a RISK card to re-roll my dice when I am defending?
No, the rules state you cannot use a RISK card to re-roll dice when defending.
How many dice can a defender roll?
A defender can roll 1 or 2 dice, depending on how many armies they have.
What happens if the attacker and defender roll the same number?
In the case of a tie, the defender always wins the comparison.
David Noah is a board game rules specialist and content creator who writes clear, dispute‑free guides for modern tabletop games. On this site, he focuses on answering the exact rules questions players argue about at the table, using official rulebooks, expansions, and tournament rulings as his primary sources. His goal is to turn confusing edge cases into simple, step‑by‑step explanations so you can spend less time debating and more time playing.
