After their arrival in Cyprus, Iago Manipulates Cassio in a systematic manner using his drinking problem and then his effort to get back his position after being stripped of the Lieutenancy. When Othello goes to celebrate his honeymoon in his chamber, Iago encourages Cassio to drink to celebrate Othello’s health, and though Cassio at first refuses, he eventually gives in to Iago’s persistence. “If I can but fasten one cup upon him/ With that which he hath drunk tonight already, / He’ll be as full of quarrel and offense/ As my young mistress’ dog.” (II. Iii. 49-52) Knowing how much Cassio loves Othello; Iago uses the excuse of drinking to his wealth to reel in Cassio. Roderigo incites the drunken Cassio at Iago’s command and Cassio fights with
