The United States intend to support its allies. Syrian rebels will get a new portion of weapons.
By such actions Americans are going to throw the gauntlet to Russia and the Syrian government.
There is also an opinion that the US is insisting on the resignation of Assad again. By the supply of weapons to the opposition the U.S. intends to exert pressure on the leader of Syria.
The White House hopes that the rebels would hold their positions and will provide effective resistance to the army of Bashar al-Assad.
As the diplomatic efforts to include rebel battalions to Russian anti-ISIS coalition have failed, the plans of the United States represent a threat to both the government army and Russian units.
The threat is also provided by F-15C aircrafts, urgently transferred to the Turkish base “Injirlik“. On these jets only “air — air” class weapons are mounted.