President Joe Biden’s administration is urging Ukraine to quickly increase the size of its military by drafting more troops and revamping its mobilization laws to allow for the conscription of troops as young as 18.

The United States is urging Ukraine to “look hard” at removing policy mandates that limit the nation to drafting soldiers aged 25 and up, a senior administration official told The Hill on Wednesday. They’ve suggested lowering the age to 18,

Ukraine has taken steps to broaden the pool of draft-eligible men, but the efforts have only scratched the surface against a much larger Russian military.

President-elect Donald Trump has nominated Keith Kellogg, a former national security adviser and retired lieutenant general in the US military, to be special envoy to Ukraine and Russia in his second administration. Kellogg is likely to be at the centre of negotiations to end the ongoing war in Ukraine, should Russia and Ukraine agree to take part.