The primary reason for America's involvement in World War II was:

(C) Japanese attack on Pearl Harbor

The United States entered World War II on December 7, 1941, after the surprise attack by Japan on the U.S. naval base at Pearl Harbor in Hawaii. Prior to the attack, the U.S. had pursued a policy of neutrality, but the bombing of Pearl Harbor prompted the U.S. to declare war on Japan, and subsequently, Germany and Italy declared war on the United States.

The Dronacharya Award, officially known as Dronacharya Award for Outstanding Coaches in Sports and Games, is sports coaching honour of the Republic of India. The award is named after Drona, often referred as "Dronacharya" or "Guru Drona", a character from the Sanskrit epic Mahabharata of ancient India.