According to the Pentagon statement, the shelling occurred near Kobany at 9: 00 pm local time (1 1). The statement said that the explosion occurred within a few hundred meters of the US military post outside the security mechanism zone, where the US military is known to be stationed in Turkey.
The U.S. Department of Defense also stressed in its statement that the United States still opposes Turkish troops entering Syria, especially Turkey's actions outside the security mechanism zone and in areas where Turkish troops are known to exist.
The Turkish Ministry of Defence announced on the 9th that the Turkish army has launched ground military operations against Kurdish armed forces in northern Syria. The Turkish Ministry of Defence said on social media that as part of the "Peace Spring" operation, the Turkish army and the "Syrian National Army" have begun to launch ground attacks east of the Euphrates River in northern Syria.
On the eve of Turkey's military operation, the White House said on the 6th that the US military would "not support or participate in" Turkey's upcoming military operation in northern Syria, and the US military would withdraw from the relevant areas. However, Turkey unexpectedly attacked the US military first, which shows that the US military has not completely withdrawn.
In fact, we should also know that the United States is the kind of person who says one thing and does another. Therefore, Turkey's unexpected attack on the United States is also a reminder to Syria that the United States has not completely withdrawn its troops.