TPM Livewire

Hagel On Ukraine: 'This Could Be A Very Dangerous Situation'

AP Photo / Evan Vucci

However, Hagel said that the U.S. should remain focused on diplomacy for now.

"We're trying to deal with a diplomatic focus. That's the appropriate, responsible approach," he said.

When asked if the U.S. had any military plans ready in case intervention was necessary, Hagel would not provide details.

"Well, we have plans for everything, all the time," he answered.