Russia is willing to risk “real financial harm” and all-out war to achieve its political objectives over Ukraine, defense analysts have said.

Moscow has denied that it plans to invade neighboring Ukraine, a former part of the Soviet Union, despite having assembled around 100,000 troops at the border.

On Sunday, Bob Menendez, chair of the U.S. Senate Committee on Foreign Relations, told CNN lawmakers were devising the “mother of all sanctions” against Russia.