Iran's parliament on Sunday approved an increased budget for the country's ballistic missile programme and the regional operations of its Revolutionary Guard, in defiance of USA sanctions imposed last month over Tehran's testing of new missile technology.
Tensions between Tehran and Washington have grown since President Trump took office.
"The Americans should know that this was our first action", said parliament speaker Ali Larijani, after announcing overwhelming support for a package "to confront terrorist and adventurist actions by the United States in the region".
The measure was voted for by 240 out of 244 MPs present.
The measure would also allocate over $260 million each to Iran's ballistic missile programme and the Quds Force - the external arm of the Islamic Revolutionary Guard Corps, which has been deployed to battlefields in Iraq and Syria.
After the result was announced, lawmakers shouted: "Death to America".
Iran denies violating the United Nations resolution which endorsed the Tehran's 2015 nuclear deal, preventing them from conducting activities related to ballistic missiles created to deliver nuclear weapons.
The bill tasks Foreign, Intelligence, and Defense Ministries, Iran's Army, and its Islamic Revolution Guards Corps (IRGC), and its Quds Force to produce a comprehensive strategy aimed at countering USA threats.
To counter USA economic sanctions, the government has been ordered to provide a comprehensive plan on expanding economic cooperation with world countries, especially Iran's neighbors and friends as well as the countries which have likewise been subject to Washington's embargoes.
Iranian parliamentarians responding to the recent U.S. sanctions on Tehran have tasked the government with allocating about $300 million to Quds force, the foreign arm of the Islamic Revolution Guards Corps (IRGC).
"The bill is backed by the foreign ministry and the government and is part of measures by the JCPOA supervision committee to confront the recent US Congress law", deputy foreign minister Abbas Araghchi.