Defense chiefs from seven Western countries are meeting in the French capital of Paris to explore  what they call new avenues for stepping up the fight against Daesh terrorists.

Ministers from the United States, France, Britain, Germany, Italy, Australia and the Netherlands are set to discuss increasing the number of police and army trainers during their meeting on Wednesday.

"The object of today is to satisfy ourselves that the balance of the campaign is right...and that we can now capitalize on the setbacks Daesh has suffered in Iraq and move on to tighten the noose around the head of the snake in Syria in Raqqa," British Defense Secretary Michael Fallon told reporters before the meeting.

Fallon further said Daesh had lost 25 percent of the areas it controlled in Iraq and 10 percent in Syria.

US Defense Secretary Ash Carter said the talks would focus on how to accelerate the anti-Daesh campaign. This may include an increase in the number of trainers and police who can help purge Daesh terrorists from more areas.

"It's not just about adding more planes, but also trainers to accelerate the speed with which local forces can retake territory against Daesh," a French official said.

Referring to the absence of Arab ministers in the meeting, Fallon said many Arab allies have been occupied with the Saudi-led deadly campaign against Yemen.

He added there would be a meeting with Arab ministers in Brussels in the next few weeks.

The news comes as some reports accuse the Western countries and some Persian Gulf Arab states of supporting financially and militarily the Takfiri militants fighting in Syria to remove the Syrian President Bashar al-Assad from power.

Since September 2014, the US along with some of its allies has been conducting air raids against what are said to be the Daesh terrorists inside Syria without any authorization from Damascus or a UN mandate. The air assaults in Syria are an extension of the US-led aerial campaign against purported Daesh positions in Iraq, which started in August 2014.

The US-led strikes have on many occasions targeted infrastructure and left many civilians dead.