1) Ukranian men aged between 18 and 59 living abroad are unable to renew expiring passports or obtain new ones as of today.

https://www.reuters.com/world/europe/kyiv-says-passports-military-age-men-be-issued-only-ukraine-2024-04-24/

2) Poland ready to help to get them back.

https://www.reuters.com/world/europe/poland-ready-help-ukraine-get-military-age-men-back-minister-says-2024-04-24/