US Chairman of the Joint Chiefs of Staff Mark Milley said Ukraine is dealing with heavy Russian reinforcements including minefields, tank ditches and dragon’s teeth antitank obstacles in its counteroffensive.

On Thursday night, Milley said, “The Ukrainians have a significant amount of combat power remaining; this is not over yet”.

“So I think it’s frankly too early to say whether it [has] succeeded or failed.”

“Clearly it’s had partial success to date. Now the speed at which the offensive has been undertaking is slower than the planners had thought,” Milley added in the interview with Jordan’s Al-Mamlaka public service TV news channel.

Ukrainian forces are being trained in various parts of Europe on “command and control of offensive formations and combined arms manoeuvre.

“Again, it’s bloody, it’s long, and it’s slow. And we had predicted that several months ago,” he said.