The United States House of Representatives has passed an amendment to National Defense Authorisation Act (NDAA), 2018, a $621.5 billion defence expenditure bill to advance defence cooperation with India. India related amendment in the bill was adopted by a voice vote in the House by 344-81. Now, NDAA needs to be passed by the US Senate before it can be sent to US President Donald Trump to sign into law. The India-related amendment in NDAA 2018, requires the US Secretary of Defence, in consultation with the Secretary of State to develop a strategy for advancing defence cooperation between US and India. The NDAA is a United States federal law specifying the budget and expenditures of the United States Department of Defence. Each year’s NDAA also includes other provisions. The US Congress oversees the defence budget primarily through two yearly bills: the NDAA and Defense appropriations bills.