1845
Battle of Mudki
The setting
Mudki, south of the Sutlej in modern Punjab, India
Scrub and low jungle at dusk, on ground neither side had chosen, after both had marched hard.
Reveal the outcome
Recorded sideSikh Khalsa Army
Recorded resultdefeated; withdrew, leaving 17 guns
British victory, costly and confused.
How the atlas explains it
It barely did. The action ran into darkness, British units fired into each other, and Gough's preference for the bayonet over the gun cost him men he did not need to lose. What decided it was that Lal Singh - the Sikh commander, and in secret communication with the British - broke off and withdrew with the battle undecided.
What followed
The opening battle of the First Anglo-Sikh War, and the first appearance of the pattern that runs through the whole war: a Khalsa army that fights extremely well under commanders who do not want it to win.