TheymustenterintocloseliaisonwiththedetachmentsofColpinnoandKrasnoyeSelo,andalsowiththeStaffoftheCommanderinChieffortheDefenceofPetrograd.

Please segment the words.
They must enter into close liaison with the detachments of Colpinno and Krasnoye Selo, and also with the Staff of the Commander in Chief for the Defence of Petrograd.