So far, the US hasn't been hit too hard.

With tensions increasing between the US and Russia, a look at Europe's response.

Two big business groups warn that sanctions against Russia could hurt US jobs.

German Chancellor Angela Merkel will talk sanctions with President Obama.

Both the U.S. and the EU are imposing sanctions on Russia. But they're targeting different Russians.

New sanctions take aim at the head of a Russian oil company in which BP has a big stake. BP’s stock fell after new sanctions were announced.

Christine Lagarde on Congress' IMF vote: "Not exercising that leadership is a mistake."

President Obama said Russia will have to "pay" more if things don’t change. Pay what?

U.S. announces sanctions on Russia; Russia retaliates.