Q. Why is Turkey attacking Kurds in North-East Syria?
A. Because it views Syrian Kurdish fighters as terrorists who support other Kurds who have launched attacks in Turkey.
They also prefer their old enemy Syria to be unstable, and peace has broken out lately.
Q. Why should Britain care?
A. Because the Kurd-dominated Syrian Democratic Forces were trained by British and US troops to defeat Islamic State and they lost 11,000 comrades in brutal fighting.
Crucially, because IS could attack the UK again if the Kurds are beaten by Turkey, since it is their SDF force that stood between us and the terrorists.