After all the warnings and all the clichés about a war that would "spill" over Syria's border, the savage fighters of Abu Bakr Al Baghdadi's "caliphate" have at last arrived in Lebanon.
So far, the Lebanese army has lost 13 of its soldiers in a costly battle with rebels to retake the north-eastern town of Arsal — on the Syrian border and hitherto a resupply base of the rebels trying to overthrow President Bashar Al.
The world's attention, of course, has been concentrated on the slaughter in Gaza. In the Middle East, tragedy must come one day at a time, so the Syrian civil war and the Islamic State takeover of western Iraq continued in the shadows of the Palestinian-Israeli conflict.
But the radicals' arrival in Lebanon and the prospect of a mini-civil war around Arsal — and perhaps as far as Tripoli — could have repercussions far graver than the Gaza war.
As the radicals take over Lake Mosul and other districts from the Kurds in northern Iraq and press harder against Syrian government troops, their extension into Lebanon marks their furthest progress yet from the Tigris towards the Mediterranean.
In Arsal, the fighters — officially from Al Nusra, whose own members are already joining those of Abu Bakr Al Baghdadi's caliphate — adopted their usual practice of seizing large buildings in the centre of the town and clinging to them in the hope that their opponents would disintegrate.
The Lebanese army, which has twice defeated rebellions inside Lebanon in the past 15 years, claimed to have retaken the college, but the statements from both the Lebanese commander and Prime Minister may be taken as accurate: that the takeover of Arsal had been planned long in advance and is part of a far greater rebel strategy.
The Lebanese army says it has so far killed 50 fighters — a tally that sounds very like the Syrian army's premature claims of victory on the other side of the border — but government forces in Lebanon are unlikely to fall back.
For more than a year, the Lebanese army has tried vainly to close the frontier east of Arsal, and a Syrian army victory over rebels in Yabroud on the other side of the border earlier this year suggested that sectarian insurgents might leave Arsal lest they be cut off.
But their resurgence shows that the Syrians have nothing like the control they have been claiming in the frontier lands.
Indeed, Al Nusra men had no difficulty in seizing 15 soldiers and almost as many Internal Security Force personnel when they first struck at Arsal.
Less than two weeks ago, Lebanese special forces in Tripoli killed Mounzer Al Hassan, a logistics officer who was reported to have given suicide belts to bombers who attacked Beirut's southern surburbs and the Iranian embassy in the capital.
Those present at the battle said that Hassan was playing music when a hand grenade — possibly in his own possession — blew up in his face.
The battles in Syria, however, are more complex. While ISIS — which still uses its acronym of the Islamic Army of Iraq and the Levant despite its incorporation into what Al Baghdadi calls the "Islamic State" or caliphate — has strengthened its position in Deir Al Zour and neighbouring villages (with its usual ferocious executions and heads-on-stakes), the Syrian military seems intent on blasting rebels out of the Damascus suburbs, especially Douma, a district which lies close to the main road north of the capital.
If al-Baghdadi's men are fighting for control in the east of the country, Assad doesn't want them taking the place of less spirited rebels around Damascus. Reports of independent resistance groups who oppose both Assad and ISIS — and supposedly call themselves "White Shrouds" — should be taken with the usual Syrian caution.
Various militia outfits of mixed persuasions have strode fitfully onto the stage of the civil war over the past two years, only to vanish or merge into larger rebel or government forces. But just as they must abide by tribal rules in Iraq, radicals have found it dangerous to take on individual Syrian tribes in the "Jazeera" plateau north of Deir ez-Zour.
They may have no love for Assad, but they will not allow fighters from Algeria or Chechnya to rule their tribal lands. More disturbing, however, is the news that gunmen from the caliphate may have taken Iraq's largest dam outside Mosul from Kurdish Peshmerga guerrillas.
The Kurds enlarged their territory by perhaps 40 per cent when the Iraqi army fled the northern Iraqi city, but the reputation of their supposedly unconquerable Peshmerga army is taking a battering now that they have admitted losing villages close to the dam.
If the bigots and radicals can capture the entire facility, they would technically have the ability to close off the waters from Baghdad — or flood the capital city, whose government has proved itself incapable of governing — or recapturing — lost territory in Iraq. – The Independent