Russia now has more than an estimated half a million troops ready to move into Ukraine, analysts have revealed, just days after Putin’s army crashed through the border into North-East Ukraine. In comparison, Ukraine’s entire active ground forces comprise roughly 250,000 personnel. The newly-increased size difference has prompted concerns from experts, and comes as the Western ally waits with bated breath for the first deliveries of a long-delayed US military assistance package worth tens of billions of dollars. Dr Jack Watling, from the Royal United Services Institute (RUSI), said: “The Russia…