call for
phr. v..phr. v.. to say publicly that something is necessary or should happen.
phr. v.. to publicly demand or require a particular action or quality; often used in political or professional contexts to indicate necessity.
The protesters call for a change in the law.
After the accident, many local residents began to call for better safety measures at the crossing.
The opposition party issued a statement to call for an immediate investigation into the government's handling of the crisis.
usually followed by a noun representing a required action, quality, or person.
contrast with 'demand' which is more aggressive; 'call for' is often used in news headlines and formal requests for social or political change.
The situation calls to a quick response.The situation calls for a quick response.the preposition 'for' is the only correct particle to express necessity in this context.