The same day, the Marshal of the Kingdom, Charles Burnett Wilson, was tipped off by detectives to the imminent planned coup. Wilson requested warrants to arrest the 13-member council of the Committee of Safety, and put the Kingdom under martial law. Because the members had strong political ties to United States Minister to Hawaii John L. Stevens, the requests were repeatedly denied by the queen's cabinet, who feared that the arrests would escalate the situation. After a failed negotiation with Thurston, Wilson began to collect his men for the confrontation. Wilson and captain of the Royal Household Guard Samuel Nowlein had rallied a force of 496 men who were kept at hand to protect the queen. Marines from the USS "Boston" and two companies of US sailors landed and took up positions at the US Legation, the Consulate, and Arion Hall. The sailors and Marines did not enter the palace grounds or take over any buildings, and never fired a shot, but their presence served effectively in intimidating royalist defenders. Historian William Russ states, "the injunction to prevent fighting of any kind made it impossible for the monarchy to protect itself".