This is the 4627th most frequent Polish word.
ministerstwo
Ministry (a governmental department).
'Ministerstwo' as a governmental department where 'Obrony Narodowej' specifies the particular sphere of this department, National Defense.
Ministerstwo Obrony Narodowej ogłosiło nową strategię.
The Ministry of National Defense announced a new strategy.
'Ministerstwie' is the locative case of 'ministerstwo,' used to describe the location where the action of working takes place.
Pracuję w ministerstwie od pięciu lat.
I have been working at the ministry for five years.
'Ministerstwo' refers to the governmental department responsible for educational matters, and the context shows its active function in policy implementation.