What does the term "collective security" mean in the context of India and Russia's vision of the world order?

An attack on any country is regarded as a threat to all and requires a collective response

In the context of India and Russia's vision, "collective security" means that an attack on any country is regarded as a threat to all and requires a collective response.

India has maintained good relations with all the post- communist countries. But the strongest relations are still those between Russia and India. India’s relations with Russia are an important aspect of India’s foreign policy. Indo-Russian relations are embedded in a history of trust and common interests and are matched by popular perceptions. Indian heroes from Raj Kapoor to Amitabh Bachchan are household names in Russia and many post- Soviet countries. One can hear Hindi film songs all over the region, and India is part of the popular memory. Russia and India share a vision of a multipolar world order. What they mean by a multipolar world order is the co-existence of several powers in the international system, collective security (in which an attack on any country is regarded as a threat to all countries and requires a collective response), greater regionalism, negotiated settlements of international conflicts, an independent foreign policy for all countries, and decision making through bodies like the UN that should be strengthened, democratised, and empowered. More than 80 bilateral agreements have been signed between India and Russia as part of the Indo-Russian Strategic Agreement of 2001.