valtioihin
Valtioihin is the illative plural form of the Finnish noun valtio, which refers to a political state. The illative case expresses movement toward or into a place, and in the plural it is formed with the ending -iin/-ihin, yielding valtioihin. Thus, valtioihin literally means “into the states” or “to the states” and is used whenever the reference is to multiple states as destinations or targets of action.
Usage notes: It appears with verbs of movement (such as matkustaa, mennä, lähteä) or with expressions that
Grammatical contrasts: The illative plural valtioihin contrasts with the nominative plural valtiot (the states), the inessive