The US and Japan have filed a complaint with the World Trade Organization against India's unannounced bans on onion exports. The countries are seeking clarification on India's export policies and why it did not implement an export quota. They also question the impact of the bans on food security in importing countries. This comes after India's initial ban in September, which sparked protests and disruptions in trade. The ban was later partially and fully lifted as India's domestic onion prices fell with the start of a new harvest.