Syria's U.N. ambassador Bashar Jaafari called on U.N. Secretary General Ban Ki-moon and the 15-member Security Council to take "the necessary measures against their nationals who enter Syrian territory illegally."
McCain paid a surprise visit to Syria in May 2013, meeting with rebels after crossing the border from Turkey.
Jaafari said the Republican Senator met with leaders of the al-Nusra Front, which the Security Council has branded a terrorist organization.
Kouchner traveled to Kurdish areas in northern Syria in November last year.
Another U.S. diplomat, David Galbraith, visited Syria in December, and a former Kuwaiti lawmaker, Walid al-Tabtaba'i, was cited for his 2013 trip in Jaafari's letter, according to AFP.
Galbraith was accompanied by three U.S. political and military officials during his visit last month while Walid al-Tabtaba'i brought money and weapons to the rebels, and took part in combat in September 2013, the envoy said.
"Such actions are a blatant violation of Syria's sovereignty and the resolutions of the Security Council concerning Syria," wrote Jaafari in the letter dated December 24.
McCain dismissed the Syrian complaint while berating the international community for not acting to oust the Assad regime.
"It is a sad but unsurprising truth that the Assad regime is less concerned with its massacre of more than 200,000 men, women and children than it is my visit with those brave Syrians fighting for their freedom and dignity," McCain said in a statement.
Comment: There you have it, McCain refers to ISIS and other terror groups the U.S. unleashed in Syria as fighters for 'freedom and dignity' while at the same time claiming that the U.S. needs to deploy ground troops in order to defeat ISIS. What better proof that their 'anti-ISIS coalition' is a pure publicity stunt.
Below is a photo of McCain meeting with terrorists and the current 'leader' of ISIS.
"The fact that the international community has done virtually nothing to bring down this terrible regime despite its atrocities is a stain on our collective moral conscience."
Maybe they just should have arrested them and then expelled them all? Or perhaps a good shelling would be in order..... Woops we didn't know they were there! Sorry! But perhaps they have to many manners for that?
I can see these people aren't mercenaries as they aren't wearing balaclavas to hide their identities. What IS the guy standing behind John McCain wearing - t-shirt wise? Something about 'No War Generation'? Is that some kind of mistake?