 To prepare for the transition to the new doctrine, Brigadier General San Yu, the then Vice Chief of Staff (Army), sent a delegation led by Lieutenant Colonel Thura Tun Tin was sent to Switzerland, Yugoslavia, Czechoslovakia and East Germany in July 1964 to study organisation structure, armaments, training, territorial organisation and strategy of people's militias.A research team was also formed at General Staff Office within the War Office to study defence capabilities and militia formations of neighbouring countries.The new doctrine of total people's war, and the strategy of anti-guerrilla warfare for counterinsurgency and guerrilla warfare for foreign invasion, were designed to be appropriate for Burma.