Last Friday a 155 mm artillery shell landed
300 metres from a US command post near the Syrian bordering city of Ayn al-Arab (known by the Syrian Kurds as "Kobane") during an ongoing operation carried out by Turkey - a NATO and a US ally. This operation aimed to dislodge, at a distance of 30-35 kilometres from the border, the US-backed Kurdish militants known as the YPG, the Syrian branch of the US-EU-NATO designated terrorist group, the "Kurdistan Workers' Party (PKK).
The Turkish troops backed by Syrian proxies had rapidly advanced in the first week of the military operation into US-occupied Syrian territory, cutting the main roads and attempting to isolate their enemies.
These two swift events were enough to ring the alarm bells and straightaway pushed the US administration to announce, via the Secretary of Defence Mark Esper, the withdrawal of approximately 1,000 US troops from north-east Syria (NES). The killing of any US soldier in Syria would effectively have been a nail in the coffin of the US President Donald Trump's electoral campaign in 2020. France and Britain, who maintain Special Forces in NES, will follow the US forces out of Syria.
The Syrian forces were given orders to deploy in NES following a deal between Russia and Turkey, and between Russia and the Syrian officials, to guarantee the safety of the separatist Syrian Kurds.
The Syrian President Bashar al-Assad agreed to guarantee the safety of the Kurds as long as these become part of the National Security Forces. No other conditions were put forward by the Kurds, who have lost momentum with the sudden US withdrawal.
Damascus promised there will be no revenge or resentment measures towards the Kurds who have, for years, acted as human shields to protect the US occupation forces which remained in Syria notwithstanding the defeat of ISIS.
Comment: See also: Turkish invasion DAY 7: Syrian Army enters Manbij - Trump says US pulling out of Syria, will only stay at al-Tanf - UPDATES