It is clear that US looks to bolster states in East Asia against rising China threat. Such investment required to maintain military forces in the Middle East has increasingly fallen into question. It is clear to Biden administration not let Iran to access nuclear weapons. To achieve such goal, US administration seeks ways to pressure Iran with economic sanctions. US army has some 2500 troops in Iraq and 900 in Syria. If US increases the number of soldiers in Syria, it may not only disturb Iran but also Turkey.
According to Syrian Observatory for Human Rights, a military convoy over 50 vehicles and trucks affiliated to the International Coalition were seen crossing into north-eastern Syria from the Kurdistan region of Iraq. It is assumed that truck were carrying weapons and logistical equipment. This is the 11th Coalition convoy to enter Syria since beginning of 2021.
While PKK terror organization have killed 13 Turkish citizen in Gara, Iraq, such deployment will cause rising the eyebrows in Ankara. There are no credible threats from ISIS more than a year in the region.
Geopolitics dictate countries to act differently than it is assumed. While US deploys military hardware to organizations which are considered as terrorist groups by Turkey, it will be difficult for US to persuade Turkey with its intensions. And as well as it is the fact, it is impossible for US to concentrate on China with full devotion.