Noun
a line formed by troops or ships prepared to deliver or receive an attack
Source: WordNetIn a battle, as in a siege, the art consists in concentrating very heavy fire on a particular point. The line of battle once established, the one who has the ability to concentrate an unlooked for mass of artillery suddenly and unexpectedly on one of these points is sure to carry the day. Napoleon Bonaparte
The fleet being thus more inclosed will more readily observe the signals, and with greater facility form itself into the line of battle a circumstance which should be kept in view in every order of sailing. William Falconer
From each one of them rose separate columns of smoke, meeting in a pall overhead, and through the smoke came stabbing flashes of fire as German shells burst with thudding shocks of sound. This was the front line of battle. Philip Gibbs
A further step change in naval firepower occurred when the United Kingdom launched HMS Dreadnought (1906), but naval tactics still emphasized the line of battle. Source: Internet
At 11:00 a.m., Jervis gave his order: Form in a line of battle ahead and astern of Victory as most convenient. Source: Internet
In perfect line of battle, they advanced up the muddy slope until they were cut down at about 125 yards from the stone wall by repeated rifle volleys. Source: Internet