India has arrested six Ukrainian nationals and an American citizen for allegedly entering India’s northeast region without permits and crossing to neighbouring Myanmar to train armed groups in drone warfare.The foreign nationals were arrested by Indian police on March 13 at three different airports across the country. According to Indian media reports, the US national was detained by the Bureau of Immigration at Kolkata airport, three Ukrainians were detained in Lucknow, and three more in Delhi. It is not clear if they were on their way to Myanmar or returning from the country.Recommended Stories list of 3 itemsend of listIndia’s National Investigation Agency (NIA) has charged them with violating the country’s “anti-terror” laws, and they will be held in custody until March 27.Local police also arrested two more American tourists on Saturday for flying drones near Coast Guard headquarters in the southern city of Kochi – where India is harbouring sailors from an Iranian ship that it hosted in military exercises in February. Another Iranian ship that India had hosted was torpedoed by the US early in the war, embarrassing New Delhi and killing dozens of Iranian sailors.Why have these Americans and Ukrainians been arrested? What does this mean for India’s relations with Myanmar, Ukraine and the US?Here’s what we know:Who has been arrested?According to Indian media reports, the seven foreign nationals arrested …