© Amer Almohibany / Reuters

There is a simple explanation why Washington refuses to proscribe the militant groups Jaysh al-Islam and Ahrar al-Sham as terrorist. Because Washington relies on them for regime change in Syria.

Therefore, Washington and its Western and Middle East allies cannot possibly designate Jaysh al-Islam and Ahrar al-Sham as terrorist; otherwise it would be a self-indicting admission that the war in Syria is a foreign state-sponsored terrorist assault on a sovereign country.

This criminal conspiracy is understood by many observers as an accurate description of the five-year Syrian conflict and how it originated. Syria fits into the mold of US-led regime change wars in the Middle East and elsewhere. However, Washington and its allies, assisted by the Western corporate news media, have maintained a fictitious alternative narrative on Syria, claiming the war is an insurgency by a pro-democracy rebel movement.

That narrative has strained credulity over the years as the putative "secular rebels" have either vanished or turned out to be indistinguishable from extremist groups like al-Qaeda-linked Jabhat al-Nusra and so-called Islamic State (also known as Daesh).

Washington asserts that it only supports "moderate, secular rebels" of the Free Syrian Army. British Prime Minister David Cameron has claimed that there are 70,000 such "moderate rebels" fighting in Syria against the government of President Bashar al-Assad. But no-one can locate these supposed pro-democracy warriors.

All that can be seen is that the fight against the Syrian government is being waged by self-professed extremist jihadists who have no intention of establishing "democracy". Instead, they explicitly want to carve out an Islamic state dominated by draconian Sharia law.

In addition to Jabhat al-Nusra and Daesh, the two other major militant groups, Jaish al-Islam and Ahrar al-Sham, are vehemently committed to forming a Caliphate based on Salafi or Wahhabi ideology. That ideology views all other religious faiths, including moderate Sunni Muslims, as well as Shia and Alawites, as "infidels" fit to be persecuted until death.

Leaders of both Jaysh and Ahrar have publicly declared their repudiation of democracy. Yet these two groups are nominated as the Syrian "opposition" in the Geneva talks, as part of the High Negotiations Committee (HNC). The HNC was cobbled together at a summit held in the Saudi capital Riyadh in December ahead of the anticipated negotiations to find a Syrian political settlement.

The HNC is endorsed by Washington as official representatives of the Syrian opposition. It is supported by Saudi Arabia, or indeed more accurately, orchestrated by the Saudi rulers since the main components of the HNC are Jaysh al-Islam and Ahrar al-Sham. Other major sponsors of the militant groups are Qatar and Turkey.

Staffan de Mistura, the UN envoy to Syria, also plays an

important part

in the charade of furnishing an opposition composed of extremists who demand the Syrian government must stand down as a precondition for talks. This maximalist position is one of the main reasons why the negotiations have come unstuck,

according to

Russian Foreign Minister Sergey Lavrov.

Another basic reason is that the HNC members have been involved in breaching the cessation of violence the US and Russia brokered on February 27, as a confidence-building measure to assist the talks process in Geneva.

That Jaysh al-Islam and Ahrar al-Sham have not observed the shaky ceasefire is a corollary of the fact that both groups are integrated with al-Qaeda-affiliated terror organizations, al Nusra and Daesh, which are internationally designated terrorist organizations.

The UN excluded al-Qaeda franchises from the ceasefire when it passed Security Council Resolution 2254 in December to mandate the purported Syrian peace talks. In that way, Syria and its foreign allies, Russia, Iran and Lebanon's Hezbollah, have been legally entitled to continue offensive operations against the extremists in parallel to the Geneva process.

The offensive on the terror groups should include HNC members Jaysh and Ahrar. Both groups have publicly admitted to fighting alongside both Nusra and Daesh in their campaign against the Syrian army. All of these organizations have been involved at various times in bloody feuds and turf wars. Nevertheless, they are at other times self-declared collaborators.

Jaysh al-Islam and Ahrar al-Sham are also well-documented to having engaged in massacres and barbarities as vile as the other higher profile terror outfits.

Only last week, Ahrar al-Sham was responsible for the massacre of women and children in the village of Al-Zahraa, near Aleppo, according to survivors.

The group has carried out countless no-warning car bombings in civilians neighborhoods. It claimed responsibility for a bombing outside the Russian base at Idlib earlier this year, which killed dozens.

Jaysh al-Islam has publicly

admitted

using chemical weapons against Kurdish civilians in recent weeks, also near Aleppo, Syria's second city after the capital Damascus, and currently the key battleground in the whole conflict.

The same jihadist militia is allegedly linked to the chemical weapon atrocity in August 2013 in the Damascus suburb of East Ghouta, when hundreds of civilians, including children, were apparently killed from exposure to Sarin gas

. That attack was initially blamed on Syrian government forces and it nearly prompted the Obama administration to order direct military intervention on the pretext that a "red line" was crossed. Until that is, Moscow steered a ground-breaking deal to decommission chemical weapons held by the Syrian state. It later transpired that the more likely culprit for the East Ghouta atrocity was the Jaysh al-Islam militants.

A former commander of the group, Zahran Alloush, once

declared

that he would "cleanse" all Shia, Alawites and other infidels from the Levant. Many Syrian civilians later rejoiced when the "terrorist boss" - their words - was killed in a Syrian air force strike on December 25. Notably, Saudi Arabia and Turkey vehemently protested over Alloush's death.

It is irrefutable from both their actions and self-declarations that Jaysh al-Islam and Ahrar al-Sham are by any definition terrorist groups.

Certainly, Russia and Iran have officially listed both as such.

But not so Washington and its allies.

Earlier this month, a Russian proposal at the UN Security Council to proscribe Jaysh and Ahrar was blocked by the US, Britain and France. An American spokesperson told the AFP news agency that it rejected the Russian motion because it feared the tentative Syrian ceasefire would collapse entirely. This is an unwitting US admission about who the main fighting forces in the Syrian "rebellion" are.

This week US Secretary of State John Kerry made an extraordinary

claim

which, as usual, went unnoticed in the Western media. Kerry said the US

"still has leverage in Syria"

because if the Syrian government does not accept Washington's demands for political transition then the country would face years of more war.

Kerry's confidence in threatening a war of attrition on Syria is based on the fact that the main terror groups are directly or indirectly controlled by Washington and its regional allies in Saudi Arabia and Turkey.

Jaysh al-Islam and Ahrar al-Sham are essential to the terror front that gives Washington's its leverage in Syria. But the charade must be kept covered with the preposterous denial that these groups are not terrorists.