Examples from the Web for contravallation
Before help arrived, Anseric had had time to kill or put to flight all who were guarding the contravallation.
On the 20th I continued working on the lines of contravallation, under a dreadful fire from the place.
The old system of intrenched camps and lines of contravallation is unsuited to the spirit of modern warfare.Elements of Military Art and Science|Henry Wager Halleck
The other covered the siege, and secured himself from the allies by lines of contravallation.The History of England in Three Volumes, Vol.II.|Tobias Smollett
Around the great tête de pont, he contented himself with raising a contravallation, which cut off the two roads.