The rulers of Saudi Arabia insist that they will remove #Assad by any means necessary

Saudi Arabia is arguing one point of view in one country and negating it by arguing against the same logic in another.
The Saudi minister of foreign affairs justified his regime's bombardment of Yemen by arguing the following point:

"Our intervention in Yemen came in response to a request from the Yemeni government to prevent its collapse... to reinstall the legitimate government that was removed by militias supported by Iran and Hezbollah."

Contrast that logic to the logic used by Russia and Iran to justify their intervention in Syria:

"The legitimate Syrian government requested Russia's assistance to combat terrorist groups supported by Saudi Arabia, Qatar, and Turkey."

The problem with the Saudi point of view is that it arbitrarily defines one government legitimate and another illegitimate. The rulers of the Wahhabi kingdom think that regimes like that of Mubarak, Ben Ali, and Mansur Hadi are legitimate. But they declared the Syrian government illegitimate the day the peaceful protest broke out in 2011. 

This logic that is conveniently applied to one country and not another proves that powerful governments are using civilians for geopolitical aims.  The Saudi rulers refuse to define "terrorism" and identify "terrorist" groups because they fear that they will be exposed as sponsors and supporters of many groups that would qualify as terrorists. There is no question that the rulers of Saudi Arabia are using sectarian fighters to achieve one goal: overthrow the Syrian government. To that end, they don't care if overthrowing Assad's government will result in more instability and more deaths.

Meanwhile, Reuters reported that foreign governments have supplied Syrian fighters with new weapons:

Syrian President Bashar al-Assad's foreign enemies have sent rebels new supplies of ground-to-ground missiles to confront a Russian-backed offensive by the government near Aleppo, stepping up support in response to the attack, two rebel commanders said.

The commanders told Reuters the missiles with a range of 20 km (12 miles) had been provided in "excellent quantities" in response to the attack that has cut rebel supply lines from the Turkish border to opposition-held parts of the city of Aleppo.

Facing one of the biggest defeats of the five-year-long war, rebels have been complaining that foreign states such as Saudi Arabia and Turkey have let them down by not providing them with more powerful weapons, including anti-aircraft missiles.

"It is excellent additional fire power for us," said one of the commanders, who declined to be identified due to the sensitivity of the matter. The second rebel commander said the missiles were being used to hit army positions beyond the front line. "They give the factions longer reach," he said.
 Source