The wives of the British and German ambassadors to the United Nations have written an open letter to the wife of Syrian dictator Bashar al Assad, asking her to call for peace in her country.
In the unusual move, Sheila Lyall Grant, wife of British ambassador Sir Mark Lyall Grant, and Huberta Voss Wittig, wife of German ambassador Peter Wittig, made the letter in to a short video.
The video has been posted on YouTube, urging women all over the world to sign a change.org petition demanding Asma al Assad "stand up for peace... for the sake of your people".
"We are asking Asma Assad to take a risk... and to say openly, stop the bloodshed, stop it right now," Ms Lyall Grant and Ms Vos Wittig say.
As of Tuesday evening, the petition had more than 2,000 signatures.
Mrs Voss Wittig told Sky News the two women, who are friends, were not speaking on behalf of their governments, but in a personal capacity, as mothers and as international women.
The letter implies that Mrs Assad cares too much about her style and image and is duty-bound to try to protect the Syrian people, particularly the children she has professed in the past to love so much.
Mrs Voss Wittig denied that the letter, which comes at a crucial time in Syria, threatened to undermine the work of Kofi Annan.
Mr Annan has brokered a shaky ceasefire in the country, where a small team of UN monitors are now attempting to negotiate the terms of their deployment ahead of the possible arrival of a larger team.
The UN Security Council is due this week to hear about the mission's successes from Secretary General Ban Ki-moon before it authorises more observers to travel to Syria.
Mrs Lyall Grant was unavailable to the British media for interview.
Mr Annan's spokesman did not respond to questions about whether or not joint envoy Mr Annan considered the wives' letter a help or a hindrance.