What Ukraine gains by invading Russia

Thirty months into a gruelling war, Ukraine surprised its enemy by invading Russia.  It’s the first major foreign incursion there since World War II and a deep embarrassment for Russian president Vladimir Putin.  Today, Rajan Menon, an international relations expert from The City College of New York on whether Ukraine’s major shift in tactics will pay off.  Featured:  Rajan Menon, international relations professor at The City College of New York