Washington’s efforts to choke Russian oil flows to India are raising the question of what will happen to the millions of barrels a day that would otherwise have been headed to the subcontinent.

Trump on Wednesday imposed an additional 25% tariff on Indian goods, on top of a 25% tariff announced previously, citing its continued purchases of Russian oil.

WASHINGTON/LONDON (Reuters) -From punishing Brazil to trying to curb imports of fentanyl, U.S. President Donald Trump has wielded the threat of tariffs as an all-purpose foreign policy weapon. With a Friday deadline for Russia to agree to peace in Ukraine or have its oil customers face secondary tariffs,