Russia has finished drafting 150,000 conscripts into its military, its Defense Ministry said Monday, as Ukrainian President Volodymyr Zelenskyy warned he needs more fighter jets and missile defense systems to stop the Kremlin’s renewed battlefront advance.

Zelenskyy, whose forces have scrambled to block the Russian offensive following a six-month delay in American aid, also said he wants to host another international peace summit.

Unlike the June peace summit in the Swiss city of Geneva,…