A "vigorous campaign" refers to a strong and energetic effort made to achieve a specific goal or objective. It implies that considerable and determined action is being taken to promote or support something.
Sentences with «vigorous campaign»
Parents at both schools mounted vigorous campaigns against closure. (washingtonpost.com)
Following vigorous campaigning by PETA, the Army ended cruel and outdated monthly training exercises at Aberdeen Proving Ground in which monkeys were poisoned with a drug overdose. (features.peta.org)