Story highlights Obama has stressed that the U.S. would continue to support the Syrian opposition as Russia enters the war-torn country

The latest U.S. assessment of Moscow's activity in Syria is that Russia has moved in several ground combat weapons and troops

Washington (CNN) President Barack Obama authorized the resupply of Syrian Kurds and the Arab-Syrian opposition as part of a strategy to put pressure on ISIS from the north and strengthen the border, according to two senior administration officials.

The approval came at a National Security Council meeting on Thursday.

CNN reported over the weekend that the President also emphasized to his team that the U.S. would continue to support the Syrian opposition as Russia enters the war-torn country.

"President Obama was clear that we intend to continue our efforts to degrade and ultimately destroy ISIL in Syria and to keep supporting the moderate Syrian opposition," the official said, using another name for ISIS.

While Russia has said that it is conducting military operations to wipe out ISIS, U.S. officials have questioned that aim given that many of its airstrikes have not targeted places ISIS is active. Instead, they have seen the effort mostly as a move to bolster close Moscow ally President Bashar al-Assad.

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