Britain has announced restrictions on exports to the Argentine military on Thursday.
Business Secretary Vince Cable said in a statement to the House of Commons that the export controls will take effect immediately.
"The government has reviewed this policy in the light of recent actions by the Argentine government aimed at harming the economic interests of the Falkland islanders," he said.
"We are determined to ensure no British licensable exports or trade have the potential to be used by Argentina to impose an economic blockade on the Falkland islanders or inhibit their legitimate rights to develop their own economy."
"In future no licences shall be granted for any military or dual use goods and technology being supplied to military armed users in Argentina, except in exceptional circumstances."
Britain hasn’t exported any goods that could be used to improve the Argentine military since 1998, but it has until now allowed trade which would maintain the military’s current position.