The Trent Affair: British Outrage

November 27, 1861 – News of the U.S. seizure of Confederate envoys James Mason and John Slidell aboard the British steamer Trent officially reached Great Britain, where it was met with immediate outrage.

James M. Mason and John Slidell | Image Credit:
James M. Mason and John Slidell | Image Credit:

Commander Richard Williams of the Royal Navy, who had been aboard the R.M.S. Trent, submitted a report on the envoys’ seizure to British officials at London. He wrote:

“The commander of the Trent and myself at the same time protested against, this illegal act, this act of piracy carried out by brute force, as we had no means of resisting the aggression the San Jacinto being at the time on our port beam about 200 yards off, her ship’s company at quarters, ports open and tompions out.”

While northerners hailed Captain Charles Wilkes of the U.S.S. San Jacinto for preventing the envoys from reaching Europe, British officials viewed the boarding of one of their vessels as an invasion of Britain itself. As news of the incident spread, signs in city streets called the seizure of Mason and Slidell an “Outrage on the British Flag.”

Newspaper editorials condemned the U.S., with many blaming Secretary of State William H. Seward for trying “to provoke a war with England for the purpose of getting Canada.” An article in the London Chronicle went even further:

“Abraham Lincoln… has proved himself a feeble, confused and little-minded mediocrity. Mr. Seward, the firebrand at his elbow, is exerting himself to provoke a quarrel with all Europe, in that spirit of senseless egotism which induces the Americans, with their dwarf fleet and shapeless mass of incoherent squads which they call an army, to fancy themselves the equal of France by land and Great Britain by sea.”

The London Standard saw the capture as “but one of a series of premeditated blows aimed at this country… to involve it in a war with the Northern States.” The London Post declared, “In one month, we could sweep all the San Jacintos from the seas, blockade the Northern ports and turn to a direct and speedy issue the war.” The British demanded “reparation and apology” for this blatant violation of international law.

The British Parliament immediately approved an embargo on all shipments of saltpeter from British India to the U.S. Seward had arranged for the du Pont company to buy Indian saltpeter to use in gunpowder, so such an embargo threatened to affect the U.S. ability to wage war. Plans were also quickly drawn to build more warships in case of war with the U.S. The British military buildup soon became its largest since the Napoleonic Wars.

Charles Francis Adams | Image Credit:
Charles Francis Adams | Image Credit:

Charles Francis Adams, U.S. minister to Great Britain, was in London when the news broke. He stated that “while a storm of enthusiastic approval was sweeping over the northern part of the United States in the 12 days between November 15th and November 27th, a storm of indignation of quite equal intensity swept over Great Britain between November 27th and the close of the year.”

British public opinion had already tended to favor the Confederacy because the U.S. blockade was depriving the British textile industry of precious southern cotton. Confederate support grew all the more with this U.S. insult to British honor.

News of the “Trent affair” reached France the following day, with Emperor Napoleon III meeting with his cabinet to discuss their options. Although they had not yet learned of the British response or heard from Henri Mercier, French minister to the U.S., they agreed that the Trent’s boarding was illegal and resolved to support any British demands in response. Edouard Thouvenel communicated this policy to Count Charles de Flahault in London.

An emergency cabinet meeting took place in London on the 29th. Members read dispatches from Lord Richard Lyons, British minister to the U.S., describing the wild celebrations throughout the North and reminding them that he had warned Seward may try a move such as this. Lyons recommended that Britain dispatch troops to Canada in a show of force.

Prime Minister Lord Palmerston instructed the War Office to suspend budget reductions for 1862. He then read a legal brief he had requested from the Law Office, which confirmed that Captain Wilkes’s seizure of the envoys was “illegal and unjustifiable by international law.” Palmerston exclaimed to his cabinet, “You may stand for this, but damned if I will!”

British Foreign Minister Lord John Russell | Image Credit:
British Foreign Minister Lord John Russell | Image Credit:

British Foreign Minister Lord John Russell met with Adams, who was unaware that Seward had already notified Russell that Wilkes had acted without orders and could provide no further information. The men did not exchange official information, but Adams saw “little reason to doubt that the same steamer which bears this (letter to Washington) will carry out a demand for an apology and the restoration of the men.”

Palmerston believed that he and Adams had a verbal agreement that the U.S. would not interfere with British shipping. Palmerston informed Russell that the affair may have been planned as a “deliberate and premeditated insult” by Seward to “provoke” a war with Britain.

Scottish poet Charles MacKay wrote to Seward, “There never was within memory such a burst of feeling as has been created by the news of the boarding of the La Plata (Trent).” MacKay stated that the British were “frantic with rage, and were the country polled I fear that 999 men out of 1,000 would declare for immediate war.” Confederate sympathies, formerly “coldly expressed,” were now “warm and universal.”

MacKay wrote, “Englishmen would rather fight with any power in the world than with America, but I do assure you their blood is up and they mean mischief in this business.” This feeling was felt in all “classes of society,” even among those who normally urged peace. One such peace monger in Parliament told MacKay “that if this insult were not atoned for he saw no use for a flag; that he would recommend the British colors to be torn into shreds and sent to Washington for the use of the Presidential water-closets.”

James L. Graham, Jr., an American residing in Edinburgh, wrote that the Trent affair had “entirely monopolized the public mind.” He had never witnessed such “intense a feeling of indignation exhibited in my life. It pervades all classes and may make itself heard above the wiser theories of the cabinet officers.”

Lord Russell instructed Lord Lyons to notify Seward that Britain considered the seizure of Mason and Slidell an act of aggression. Lyons was to give Seward seven days to turn the envoys over to British authorities and apologize for the seizure, otherwise the British legation would leave Washington. Russell also directed naval forces to mobilize.

Queen Victoria of England | Image Credit:
Queen Victoria of England | Image Credit:

Before finalizing these messages, Russell sent them to Queen Victoria for review. Prince Albert, the Queen’s ailing consort, persuaded Russell to soften the demands so as to prevent the certainty of war. Under the new position, the Queen would accept Seward’s acknowledgement that Wilkes, “the U. S. naval officer who committed the aggression was not acting in compliance with any authority from his Government.”

Russell expressed certainty that once “this matter shall have been brought under the consideration of the Government of the United States, that Government will of its own accord offer to the British Government such redress as alone could satisfy the British nation, namely, the liberation of the four gentlemen (Mason, Slidell, and their secretaries) and their delivery to your lordship in order that they may again be placed under British protection and a suitable apology for the aggression which has been committed.”

If Seward did not comply within seven days of receipt of this letter, Lyons would “repair immediately to London.” Russell ordered the naval forces to act only in self-defense. He warned that “the act of wanton violence and outrage which has been committed makes it not unlikely that other sudden acts of aggression may be attempted. Vice-Admiral Sir A. Milne will take care not to place his ships in positions where they may be surprised or commanded by batteries on land of a superior force.”

Unaware of the outrage the Trent affair had caused, U.S. Navy Secretary Gideon Welles sent a complimentary letter to Wilkes:

“I congratulate you on your safe arrival, and especially do I congratulate you on the great public service you have rendered in the capture of the rebel emissaries. Messrs. Mason and Slidell have been conspicuous in the conspiracy to dissolve the Union and it is well known that when seized by you they were on a mission hostile to the Government and the country. Your conduct in seizing these public enemies was marked by intelligence, ability, decision and firmness and has the emphatic approval of this Department.”

Americans remained largely unaware of the British reaction, though many surely had a notion, until Russell’s letter reached Lyons at Washington three weeks later.



Angle, Paul M., A Pictorial History of the Civil War Years (New York: Doubleday, 1967), p. 51, 52; Catton, Bruce, The American Heritage Picture History of the Civil War (New York: American Heritage Publishing Co., 1960), p. 257; (multiple dates); Denney, Robert E., The Civil War Years: A Day-by-Day Chronicle (New York: Gramercy Books, 1992 [1998 edition]), p. 97-98; Foote, Shelby, The Civil War, A Narrative: Fort Sumter to Perryville (New York: Vintage Books, 1958), p. 157; Fredriksen, John C., Civil War Almanac (New York: Checkmark Books, 2007), p. 86; Goodwin, Doris Kearns, Team of Rivals: The Political Genius of Abraham Lincoln (New York: Simon and Schuster, 2005), p. 396-98; Long, E.B. with Long, Barbara, The Civil War Day by Day (New York: Da Capo Press, Inc., 1971), p. 143-44; McPherson, James M., Battle Cry of Freedom: The Civil War Era (Oxford History of the United States Book 6, Oxford University Press, Kindle Edition, 1988), p. 390; Ward, Geoffrey C., Burns, Ric, Burns, Ken, The Civil War (New York: Alfred A. Knopf, 1990), p. 81; White, Howard Ray, Bloodstains, An Epic History of the Politics that Produced and Sustained the American Civil War and the Political Reconstruction that Followed (Southernbooks, Kindle Edition, 2012), Q461; Wikipedia: Trent Affair

One comment

Leave a Reply