The US Congress has approved the sale of nearly 500 HIMARS launchers to Poland, Deputy Prime Minister and Defence Minister Mariusz Błaszczak announced on Twitter on Thursday. “The tacit approval procedure for the notification of the US Congress on the contract for almost 500 HIMARS launchers for Poland has ended,” he wrote on Twitter. “The tacit approval procedure for the notification of the US Congress on the contract for almost 500 HIMARS launchers for Poland has ended,” he wrote on Twitter