Learn Croatian: Danas pakiramo pošiljke za Njemačku. - Today we are packing shipments for Germany.

While u means 'to' or 'into', using za with the accusative case highlights the intended destination of a trip, vehicle, or package. In contexts like sending mail or catching a train, it translates closely to 'bound for' or 'destined for' Germany.

Why does the word for Germany change from Njemačka to Njemačku?

Because the preposition za requires the accusative case when showing a destination, purpose, or beneficiary. Njemačka acts as a feminine noun here, and feminine nouns ending in -a change that -a to -u in the accusative singular.

Is pošiljke the subject or the object in this sentence?

It is the direct object, because it is the thing being packed, so it must be in the accusative case. The singular dictionary form is pošiljka (shipment). For feminine nouns, both the plural subject form (nominative) and plural object form (accusative) take the same -e ending, which is why it becomes pošiljke.

Why isn't the word for 'we' (mi) used in this sentence?

In Croatian, you can usually drop subject pronouns like mi (we) because the verb ending already tells you who is doing the action. The -mo at the end of pakiramo clearly means 'we pack' or 'we are packing'. You only add mi if you want to place strong emphasis on the fact that we are doing it.