When your enemies are undermining you, you must countermine or you'll be blown up.
"Phineas Redux" by Anthony Trollope
After this, twelve small charges of gun-cotton were sunk in various directions, each representing a countermine of 500 pounds.
"In the Track of the Troops" by R.M. Ballantyne
They mine and countermine, until it isn't safe to predict who is immune and who isn't.
"The Brentons" by Anna Chapin Ray
Now, here was a nice plot to face, and countermine!
"The Castaways" by Harry Collingwood
Only a little art-military trick, captain, only countermined, or so.
"The Comedies of William Congreve Volume 1 [of 2]" by William Congreve
The deep mines of sin and of alienation are all undermined and countermined by His love.
"Expositions of Holy Scripture" by Alexander Maclaren
The last few weeks were further enlivened by the knowledge that the Austrians were countermining against us.
"World's War Events, Vol. II" by Various
Countermining.= The enemy, when mining operations are suspected, runs out tunnels to meet the opposing mine.
"Manual of Military Training" by James A. Moss
How dextrous at mining and countermining!
"The Works of Aphra Behn" by Aphra Behn
Unable to detect and countermine me, it was natural that they should become impatient for my removal.
"The International Spy" by Allen Upward
Ay, he was countermined!
"Davenport Dunn, Volume 2 (of 2) A Man Of Our Day" by Charles James Lever
Parallels and approaches were constructed; mines sunk and countermining done.
"The Greater Republic" by Charles Morris
She would have considerable pleasure in countermining Mr. and Mrs. Tappitt.
"Rachel Ray" by Anthony Trollope
The besieged replied to the mining attack by countermines.
"Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 6" by Various
The Turks were undermining the town, and countermines had to be prepared.
"The Strange Story Book" by Mrs. Andrew Lang
He knew you, madam, and was resolved to countermine you in all your plots.
"Dryden's Works Vol. 3 (of 18)" by John Dryden
Well, we'll see what an old politician can do to countermine an old lady.
"What Will People Say?" by Rupert Hughes
The mine had through treachery of some sort been countermined.
"My Lords of Strogue, Vol. II (of III)" by Lewis Wingfield
They mined and countermined, until the whole area had been honeycombed.
"A Breeze from the Woods, 2nd Ed." by William Chauncey Bartlett
The countermine-tunnel was also commenced opposite to the place where they thought they had heard the enemy's miners.
"Annals of a Fortress" by E. Viollet-le-Duc