 Studying Macbeth, here's how you can analyse that, 15.6. The scene opens with the stage directions telling us that Malcolm's troops have arrived at Macbeth's castle in High Donsonane Hill. Malcolm speaks in Iambit Pentameter, basically telling all of them to throw down their bowels, the camouflage that they used to disguise themselves as they advanced to Macbeth's castle. He then speaks to Sirwood, another nobleman, and he instructs him to now start the war against Macbeth. Sirwood speaks using alliteration in referring to Macbeth as the tyrant. We can see here that he is excited to begin the fight for Scotland. He then speaks in Iambit Pentameter here to basically say that they deserve to be beaten by Macbeth if they cannot fight well. McDuff then tells all the troops to blow the trumpets as a signal for the start of war. He emphasises that these trumpets will be the harbingers, in other words, they will be the signal to begin this war against Macbeth.