"War upon stone and it grows weaker. War upon man and he grows stronger. Which shall your wall be built of?"
|— In-game description|
Mark of the Bulwarks is a rare titan mark which can be equipped by titans at level 30. It can also be transferred between characters using the vault. Mark of the Bulwarks can be dismantled to generate upgrade materials.
Mark of the Bulwarks can be retrieved from one of the following activities/vendors:
|This item can drop as a Quest reward.|
|This item can drop as a Crucible match reward.|
|This item can be obtained as an Iron Banner reward.|
|This item was granted during the Crimson Doubles event of February 2016.|
|Prison of Elders|
|This item can drop as a Prison of Elders reward.|
|This item drops on Oryx's Dreadnaught.|
|This item can drop as a Strike reward. Exotic items can only drop from the most challenging Strike playlist.|
|Challenge of the Elders|
|This item is granted through the Challenge of the Elders.|