When you are attacked, all of your mafia members (up to 501) come to your aid with:
501 weapon
501 armor
501 vehicle
501 animal
501 henchmen
Therefore, a maximum of 2505 items will be used. Mafia Wars will automatically choose the best of each item from your inventory that you have. When purchasing items, it is a waste to ever buy more than 501 of any item, as this will not increase your stats.
Your Mafia Defense Strength is your mafia's total power in defense.
This number can be found under the "Fight" tab under "Your Mafia" and will be displayed to your attacker when the fight is over.
(then added to that number is your secret Defense bonus shown under "Your Skills" which is not shown to your attacker. This secret bonus is your defense skill points + the bonus earned from whoever is your Top Mafia bodyguard)
Once your defense has been increased, you will see:
Accumulate more loot that is high in its DEFENSE number (the attack rating does not factor into your defense). How high it needs to be depends on how many mafia members you have. You can get more loot:
buy it: purchasing inventory in all cities (only look at the defense number of the item)
do jobs: random loot drops occur in many jobs. Find those jobs that drop high defense items
fight: random loot drops occur in fights on occasion, though you never know what or when
use your Reward Points: sometimes an item will be offered with great defense, but don't use those precious reward points on items of low defense number
ask your mafia: publish your Wishlist with items of high defense. However, do not get greedy! People do not tend to give their mafia a lot of the best loot. Start out on lower level defense items and work your way up. Then remember to "pay it forward" and give newer members some items that you don't need anymore once you've increased your defense.
WHAT DO I NEED? Its not easy to figure out what items you need for defense. When you attack someone, you can see what items you used in that attack that had you win or lose. But those are NOT the items you will necessarily use if you are attacked, and you don't get to see that list. But start paying attention to what items the OTHER person brings to the fight when you attack them. Especially if you lose against someone of similar mafia size, you can start learning what items they have that were useful in defense. Those are the items to start accumulating!
Also under the "Fight" tab, there are images of the best defensive Weapons, Armor, Vehicles and Animals you currently use. As you fight people, you will see what others have for their best defense. You will also see what their Mafia Defense Strength is. If your Mafia Attack Strength is lower than their Mafia Defense Strength, this is why you lost. If its not, then their secret Defense skills helped them when you attacked.
Also, it is also helpful to boost your Health as well. While it will not increase your total Defense or Attack, it will at least allow you to stay alive longer, regardless of whether you are attacking or being attacked.
To see more, use the items listed with the MW Combat Calculator:
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