Turkey warns of clashes with US troops in Manbij
"We do not at all want any clash with the US in Manbij, east of the Euphrates or in any other place," said Bozdag.
"But the US has to be aware of Turkey's sensitivities. If US soldiers wear terrorist uniforms or are among the terrorists in the event of an attack against the army then there is not going to be the chance to make a distinction," he said.
"If they come up against us in such a uniform we will see them as... terrorists."
There have been heavy clashes with the YPG in the Afrin campaign so far and Bozdag was speaking after seven Turkish troops were killed on Saturday, including five in a tank attack, the heaviest single day loss of the campaign so far.
Pro-government Turkish media said the tank attack was carried out with an anti-tank missile given to the YPG by the US, but this has yet to be confirmed.
"The supposed ally the United States knows no limit in treachery," said the Yeni Akit daily.
Kurdish protests in Europe
On Saturday thousands of Kurds protested outside the Council of Europe in Strasbourg over Turkey's offensive in north-western Syria, calling President Recep Tayyip Erdogan an "assassin".
According to the organisers, 7,000 demonstrators marched in Strasbourg holding placards and shouting "Erdogan, dictator" and "silence kills"
"We want to sound the alarm because the Kurds in Afrin have fought against the Islamic State and are being massacred today. The silence of the European leaders is deadly," Suleyman Akguc, a protester, told AFP.
Meanwhile in Paris, police estimated 2,100 protesters marched on Saturday afternoon from the Gare de l'Est towards the Place de la Republique.
They displayed banners that read: "Defend Afrin = defend the women's revolution" and "Erdogan's Turkish fascism will be buried in Afrin".