The White House says U.S. President Barack Obama is expected to sign legislation implementing new sanctions on Russia over its activities in Ukraine by the end of the week.
Press Secretary Josh Earnest made the announcement on December 16 in Washington.
Congress passed the bill on December 13, authorizing new sanctions against Russia's defense and energy industries, including the arms exporter Rosoboroneksport, and investors in its high-tech oil projects.
It also authorizes -- but does not technically require -- $350 million of defense articles for Ukraine's military, including antitank and antiarmor weapons, ammunition, and surveillance drones.
The White House has thus far declined to fulfill Kyiv's request to provide lethal aid.
The announcement came as U.S. Secretary of State John Kerry said Russia has made "constructive moves" in recent days over the conflict in Ukraine.
Speaking in London on December 16, Kerry reiterated that Western sanctions against Russia were introduced to prompt Russia to stop its interference in Ukraine.
He added that the West did not seek to "hurt the people of Russia."