What is rising action for the meet by:Madelyn Srin?

The rising action of "The Interlopers" begins as Ulrich von Gradwitz and his men search for his enemy; soon, they confront each other face-to-face, but the beech tree around which they have moved in opposite directions falls on them, pinning them beneath its large branches. As they lie pinioned, the foes are confrontational with each other until Ulrich offers his flask to Georg.

Here is a definition of the rising action:

Rising action is a series of episodes in a narrative which occur after the exposition and lead to the climax of the story. Rising action usually comprises the majority of the plot, as the author must include all necessary events and information in the rising action for the eventual climax and denouement to be significant to the reader [Literary Devices]

In Saki's story, then, once the reader is introduced to the characters, Ulrich von Gradwitz and Georg Znaeym, and informed about their feud, the rising action begins.

Ulrich von Gradwitz and his hunters search for "the poachers." Ulrich strays from his men, hoping to confront his enemy on the wild night that presages a storm.

Suddenly, Ulrich's wish is fulfilled, but the men hesitate for a split civilized second because

... a man who has been brought up under the code of a restraining civilization cannot easily nerve himself to shoot down his neighbor in cold blood and without a word spoken ...