US Central Command shares photos of Kurdish women fighting ISIS in response to 'popular demand'

US Central Command on Tuesday tweeted out photos of female Syrian fighters who have joined the fight against ISIS in the country.

"Those photos were taken by CENTCOM's spokesman who travelled to Syria with Gen. Votel recently to visit with senior leaders of the Syrian Democratic Forces," a CentCom spokesman told Business Insider in an email.

While Central Command did not elaborate on which faction the women pictured belonged to in the tweets or in its email to Business Insider, one of the most prominent groups of women fighters are Kurdish rebels (though their are Kurdish women fighters in Iraq, as well).

The Kurdish militia known as the People's Protection Units, or YPG in its Kurmanji initials, has an all-women fighting unit called the Women's Protection Units, or YPJ.

The YPG is loosely organized with an egalitarian leadership and embraces radical leftist politics. Members of the organization use a gender-neutral moniker for each other - hevale - elects leaders directly, and "command positions are jointly occupied by a man from the YPG and a woman from the YPJ," Seth Harp reported for Rolling Stone in mid-February.

Ahmed Jadallah/Reuters

An Iraqi Kurdish female fighter and a Yazidi female fighter aim their weapons near the front line of the fight against ISIS near Mosul, Iraq, April 20, 2016.

"[YPG] troops are lightly armed and go into battle without body armor or helmets or even boots, just sneakers and Kalashnikovs, wearing the black flowery headscarves typical of Rojava, which the men took up wearing in solidarity with the women," Harp writes.

The presence of women fighters on the front line against ISIS - whose horrific treatment of women is well-known - has, at times, attracted coverage that focused on the fact that they are women.

One story in late 2016 referred to a slain Kurdish fighter as "the Angelina Jolie of Kurdistan."

Those fighters, however, seem to have little interest in anything but the mission at hand.

"I like that when we kill them they lose their heaven," a 22-year-old figher named Haveen told The New York Times last spring. "I don't know how many of them I've killed. It's not enough. I won't be happy until they're all dead."