वारसॉ संधि (Warsaw Pact) निम्नलिखित में से किस वर्ष अस्तित्व में आई थी?

The Truman Doctrine was primarily aimed at which of the following?

During the Cold War, the division of Germany into East and West Germany symbolized the ideological divide between the two power blocs. Which city became the epicenter of this division, marked by the construction of the Berlin Wall?

Who suggested a collective security system for Asia in 1969?