running battle
US /ˈrʌnɪŋ ˈbætl/
UK /ˈrʌnɪŋ ˈbætl/

1.
постоянная борьба, затяжной конфликт
a prolonged dispute or conflict, especially one that is intermittent or involves a series of skirmishes
:
•
The company has been engaged in a running battle with its competitors over market share.
Компания ведет постоянную борьбу со своими конкурентами за долю рынка.
•
Their marriage was a running battle of wills.
Их брак был постоянной борьбой воль.