How does Marcellus description of a military build-up as well as Horatio's response affect the mood of this scene?

Marcellus's description of the military build-up creates a tense and foreboding atmosphere, highlighting the underlying conflict and unease in the kingdom. Horatio's response, reflecting skepticism and concern, further amplifies the mood of apprehension and uncertainty. Together, their dialogue establishes a sense of impending danger, setting a serious tone that foreshadows the turmoil to come. This exchange effectively immerses the audience in the gravity of the situation.