He says that includes making sure that the military doesn't step into a situation that civilians should resolve.
Obama says the U.S. condemns the violence in the strongest terms. He says the U.S. holds Ukraine'sgovernment primarily responsible to ensure it's dealing with peaceful protesters appropriately.
Obama is speaking in Mexico after arriving for an international summit. He says the U.S. is deeply engaged with European partners, Ukraine's government and the opposition. He says the violence has captured the entire world's attention.
The U.S. has raised the prospect of joining partners in Europe to impose sanctions against Ukraine. At least 25people were killed Tuesday in clashes between protesters and police.
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