Act Three, Part-II Detailed Summary of Arms and the Man: "Arms and the Man" by George Bernard Shaw
Sergius goes to the Swiss to challenge him for a duel. He accepts the challenge calling it a child's play. Raina comes and the Swiss informs what Sergius is up to. Now, Sergius blames her of cheating on him. The Swiss clarifies but it is rather too late now. Sergius decides to break off his relationship with Raina and punish him with the filthy and the low. Raina appears to have fallen in love with the Swiss. She accuses Sergius of cheating on her with Louka. She says that Louka is always eavesdropping and following her words, Sergius discovers her standing behind the door. Louka admits that she betrayed her mistress because "her love was at stake". She is not ashamed. She stands her ground adamantly.
In the meantime, Petkoff comes there and they all behave normally. He tells that his coat seems to have been used by somebody with bigger shoulders so it doesn't fit him now. His wife is stitching it to make it fit for him. While the coat is brought by Nicola, Raina rushes to get the coat to help her father put it on. Her father is so proud of the affection shown by his daughter but we are amused when Raina stealthily draws a picture of herself from the coat pocket and hands it over to the Swiss while Sergius looks about stupidly and suspiciously.
Petkoff puts his hand in the pocket of the coat and shouts surprisingly: "Your photograph, with the inscription: "Raina, to her Chocolate Cream Soldier-a souvenir" was in the coat pocket but is now missing. Petkoff smells something is wrong. He asks Nicola if he dropped Raina's pastry that morning. Then he asks Sergius if he were the chocolate cream soldier and he returns with no.
Here Raina reveals that Sergius is interested in Louka while the Swiss is already married; she gave that picture to the Swiss thinking he was not married. The Swiss agitates that he is not married. Petkoff is confused but Nicola, the Fiance of Louka, disowns Louka stating her above his dignity. Louka, offers her hand to Sergius and he kisses it. She declares that he is to marry her now. And Sergius remembers that Louka offered her hand on the condition that she must be married. Sergius agrees to marry her.
Catherine accuses Louka of giving false information to Sergius and she replies: "I told Major Saranoff she would never marry him if the Swiss gentleman came back." This startles them all. The Swiss is the most amazed one. He proclaims: "Do you suppose I am the sort of fellow a young girl falls in love with? Why, look at our ages! I'm thirty-four: I don't suppose the young lady is much over seventeen". Raina declares him "a romantic idiot" that cannot judge between 17 and 23. The story takes another turn and the Swiss proposes Raina saying: "If you were twenty-three when you said those things to me this afternoon, I shall take them seriously." Major Petkoff gives the hand of his daughter to the Swiss and the leaves with the promise to return.