A new video posted by the Middle East Media Research Institute shows a group of Houthi children in Yemen calling for the destruction of America and Israel.
In a report which aired last week on the Houthi-owned Al-Masirah TV network, Houthi children called "Death to America! Curses upon the Jews!"
"We long for martyrdom," one boy told the reporter. "Don't you know that killing is what we are accustomed to, and that martyrdom is a blessing bestowed upon us by Allah?"
Houthi forces pulled back from positions in central Aden after air strikes by the Saudi-led coalition at dawn on Thursday, residents of the southern Yemeni port city said.
They said a unit of Houthi and allied fighters, who had advanced in tanks and armored vehicles through Aden's Khor Maksar district 24 hours earlier, pulled back, although they remained in parts of the neighborhood.
The Houthis' recent gains in Aden, the last major foothold of supporters of Saudi-backed President Abd-Rabbu Mansour Hadi, have happened despite a week of air strikes by Saudi Arabia and a coalition of mainly Sunni Arab allies.
Hadi's foreign minister Reyad Yassin Abdulla appealed on Wednesday for more effective international action to halt the Shi'ite, Iran-allied fighters before they take over the city entirely.
In the Arabian Sea port city of Mukalla, 500 km (300 miles) east of Aden, soldiers loyal to Hadi clashed on Thursday with militants suspected of being al-Qaida fighters, residents said.
The Houthis, allied to former president Ali Abdullah Saleh, took over the Yemeni capital Sanaa six months ago and control much of the country, which also faces a southern secessionist movement, tribal unrest, and a powerful regional wing of al-Qaida based in the center and east of the country.
Residents also reported air strikes overnight on the coastal town of Shaqra, which is under Houthi control and lies on the coast between Aden and Mukalla.