“Ukraine better come to the table fast. That’s all I’m telling you,” Mr Trump told reporters on Monday.
The International Court of Justice in the Hague is set to hear a case brought by Ukraine against Russian aggression in eastern Ukraine in legal proceedings starting on Tuesday.
Local authorities said they discovered 25 torture camps surrounding the eastern Ukrainian city of Kharkiv since its liberation from Russian occupation.
Fighting is currently underway around its front lines.
The website of the State Duma, parliament’s lower house, said the move would enable the military to utilise the skills of older professionals.
More than 14,000 people have been killed in fighting between Ukrainian government troops and separatists loyal to the Kremlin in the Donbas.
