1) Japan
2) China
3) United States (US)
4) Russia
Explanation:
On July 26, 2019, The United States (US) approved foreign military sales worth $670 million to support India’s C-17 military transport aircraft in order to enhance operational readiness and ability to provide Humanitarian Assistance and Disaster Relief (HA/DR) assistance in the Indo-Pacific region.The implementation of the proposed sale requires the assignment of 1 US government representatives and 23 contractor representatives to India.