Carry On Up the Khyber

The discovery undermined the legendary reputation of the 3rd Foot and Mouth Regiment, known as the 'Devils in Skirts' for their supposed fearlessness in battle without undergarments. The Khasi planned to use this evidence to prove the British were not the tough fighters they were cracked up to be, which would embolden Afghan forces to rebel and invade.

The early scene establishes the regiment's legendary status through rumor and in-world mythology.

She photographed the inspection to provide the Khasi with hard evidence that British soldiers did wear underwear, which he could use to spark an Afghan invasion. However, she refused to hand over the photograph until the Khasi slept with her, using the image as both leverage and a bargaining tool.

The photograph becomes the central plot device driving much of the conflict.

The Afghan forces believed the 'Devils in Skirts' fought without undergarments and were therefore supernatural or terrifying. When the regiment lifted their kilts to reveal they actually wore underwear, it shattered the myth, but the sudden exposure and comedic absurdity of the moment caused the superstitious Afghan army to panic and flee.

The legend of the skirted-devils is established early as a source of Afghan fear.

During the crisis meeting while Afghan forces advanced, Sir Sidney declared they would 'do nothing', a decision that proved disastrous as the siege intensified. This reflects the film's satire of British complacency and incompetent leadership during crisis, though the eventual kilt-revealing gambit saves the day.

The decision directly leads to the escalating chaos before the final reversal.

Princess Jelhi, who had fallen for Captain Keene, helped the captured British party escape by disguising them as dancing girls. However, when the Khasi insisted on seeing the entertainers instead of the usual performers, their disguises were immediately exposed and the escape failed.

Her affection for Captain Keene is established earlier when she warns him about the Governor's wife's elopement.

The photograph provided concrete proof that British soldiers wore underpants, which would debunk the 'Devils in Skirts' legend and undermine British authority. With this evidence, the Khasi could convince Afghan tribes that the British were vulnerable, allowing him to assemble a formidable invasion force to seize India.

The diplomatic effort to publicly prove the underpants incident was an aberration directly relates to this threat.

When Lady Ruff-Diamond escaped from the palace gardens, she dropped the photograph, losing the crucial evidence the Khasi needed to launch his invasion. This eliminated his leverage and contributed to the changing fortunes of both sides in the conflict.

The photograph's earlier importance makes its loss a significant plot turn.

After obtaining the photograph, the Khasi planned to immediately launch the invasion. However, he delayed the plan because he found Lady Ruff-Diamond unattractive and was reluctant to sleep with her before receiving the photograph, his personal desire for her delayed the military timetable.

This personal weakness becomes a plot point that stalls the invasion timeline.

The Khasi sent the fakir's severed head, which remained talking, as a macabre reminder of the danger facing the British and a test of their nerve. The head was served as a grim garnish during the black-tie dinner, exemplifying the film's absurdist humor and disregard for normal wartime conventions.

This scene demonstrates the escalating absurdity as the siege peaks.

After the kilt-revealing gambit forced the Afghan army to retreat, Sir Sidney and the others simply returned indoors to resume their black-tie dinner. This encapsulates the film's satirical take on British sangfroid and absurdity, prioritizing social conventions over the chaos raging outside.

The black-tie dinner scene establishes this priority earlier in the film.

Bungdit Din was the warlord of the Burpa tribe and the leader who initially discovered Private Widdle wearing underpants, triggering the diplomatic crisis. He later hosted the Khasi and Lady Ruff-Diamond at his palace, where the rescue attempt and subsequent chaos unfolded.

The initial confrontation with the Burpa tribe sets the entire plot in motion.