declaration of war

Translations
объявление войны
The declaration of war was announced by the government.
Объявление войны было объявлено правительством.
Definitions
A formal announcement by a government or authority that a state of war exists between it and another entity, typically outlining the reasons for the conflict and the intent to engage in military action.
Words
declaration

noun
объявление
of

preposition
о
war

noun
война