Strictly impartial - Drawing. Public domain image.

Bradley, in this cartoon published the day before Valentine's Day, illustrates this course of events by showing Bryan as cupid with wings, bow, and arrows, walking away after delivering "Official Valentines" to King George and Kaiser Wilhelm.
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Signed, lower left: Bradley.
The message to the British reads, "Don't use my flag," while the German message reads, "Do not interfere with my rights on the sea."
Bequest and gift; Caroline and Erwin Swann; 1977; (DLC/PP-1977:215.62)
On February 4, 1915, Germany, engaged in naval warfare with Great Britain, announced that it would establish a submarine blockade around the British Isles, effective February 18, 1915. The action was taken, in part, for Britain's alleged misuse of the flags of neutral countries as a ruse to divert U-boat commanders. The British, who considered such a tactic legal and legitimate, sanctioned the use of the American flag on the passenger ship "Lusitania" on its journey from the U.S. to Great Britain at the end of January, 1915. This attempt at subterfuge resulted in substantial concern in the U.S. over Germany acting aggressively, without proper verification or warning, against vessels displaying the American flag, and therefore interfering with U.S. rights on the sea. Secretary of State William Jennings Bryan, in favor of maintaining the country's neutral and friendly posture, felt that balanced messages of protest should be sent to both the German and British governments.
Published in: Chicago Daily News, February 13, 1915.