exhaust (someone's) resources

Translations
исчерпать (чьи-то) ресурсы
The long campaign exhausted their resources.
Долгая кампания исчерпала их ресурсы.
Definitions
To deplete or use up all of someone's available resources, such as time, energy, money, or materials, often leaving them with nothing left to draw upon.
Words
exhaust

verb
истощить
someone's

article or possessive pronoun
чьи-либо
resources

noun
ресурсы