Dubbed “the Sledgehammer” the 2S4 Tulip - or Tyulpan - self-propelled mortar is 240mm wide - twice the size of NATO mortars which are 120mm. The heavy mortar weapon has already seen service in Afghanistan, Chechnya and Syria, with devastating effects. Image: Sputnik/AFP via Getty Images) Sputnik/AFP via Getty Images)One security source told the Daily Mirror: “This is a huge weapon, devastating when using conventional weapons and capable of smashing a large area. It is feared President Vladimir Putin is poised to deploy a further 500,000 troops in a new mobilisation drive across the Russian Federation. Image: AFP via Getty Images) AFP via Getty Images)Ukraine’s President Volodymyr Zelensky said: “Everything is completely destroyed, there is almost no life left.