Kurdish People’s Protection Units (YPG) battling to defend Kobane are effectively fighting on two fronts — against both Isis terrorist forces and Turkey’s corrupt government.

Turkish President Recep Tayyip Erdogan, who presides over a big business administration with an Islamist tinge, has announced baldly that Kobane will fall.

He is urged by Washington to help defeat Isis but remains indifferent because his priority is to overthrow Syrian President Bashar al-Assad.

Erdogan makes clear that Turkish intervention will have clear guidelines — a Turkish buffer area on Syrian territory to corral refugees, a no-fly zone to ground Syrian warplanes and the explicit aim of replacing the Assad regime.

Millions of Kurds and their supporters are in the streets of Turkey and other countries demanding that Ankara ends its de facto collaboration with Isis.

The BBC informs us that the demonstrators demand Turkish army action to relieve Kobane.

Nothing like it. The last thing that the Kurds of Kobane or Kurdish regions of Turkey now subject to a state of emergency need or want is Turkish troops marching over them.

Kobane needs reinforcements and weapons supplies, but Ankara has closed the border to obstruct Turkey’s Kurds from assisting their cousins in Syria.

What a contrast to the Turkish government’s earlier stance of allowing thousands of jihadists, trained and financed by Saudi Arabia, Qatar and the United Arab Emirates, free entry into Syria to join the anti-Assad struggle.

US Vice-President Joe Biden hit the nail on the head last week when he told a Harvard University meeting that these states had “poured hundreds of millions of dollars and tens of thousands of tons of weapons against anyone who would fight Assad.”

All these supplies, together with the military assets surrendered by the corrupt and unmotivated Iraqi army, have ended up in the hands of Isis and the al-Qaida-affiliated Al-Nusra Front.

That’s why the siege of Kobane is fought between one side that has tanks, artillery and mortars and another with automatic rifles and grenades.

Washington’s much-touted anti-Isis military alliance has launched some air strikes around Kobane and may have eased the tightening stranglehold on the town, but it is window dressing that covers up a lack of clear thinking.

Nato-led imperialist forces, including Britain, have been up to their necks in boosting Isis and other obscurantist elements because of their hostility to Assad, Iran and their allies in Lebanon and Iraq.

If David Cameron had had his way, British bombers would have played the role of the Isis air force a year ago.

Barack Obama appears now to view Isis as a greater threat to the US than Assad, even though he forced Biden to apologise so as not to alienate his Turkish and Arab allies.

The US president understands what a propaganda boost it would be for Isis to capture Kobane in the face of US air strikes and what a humiliation it would be for Washington and its allied air armada.

Kobane will not be saved by token air strikes. Nor will they rid Syria and Iraq of Isis.

The Syrian, Iranian and Iraqi governments are key to resolving this issue, as is the Kurdistan Workers Party (PKK), which is falsely labelled a terrorist organisation.

Nato member states, including the US, have to rethink previous self-defeating positions, drop their sanctions against the anti-Isis alliance and send arms to those in the front line of this epic struggle.