He made the remarks in a meeting with the visiting Chinese deputy chief of staff of armed forces in Tehran on Thursday.
Since ten years ago, Iran has been concerned over the US conspiracies, he said.
Firouzabadi added that the US has resorted to proxy wars and terrorism due to its failure in military adventures.
In the meeting, the two sides also signed the draft of memorandum of understanding (MoU) on defense issues such as training, technical issues, classified information, cyber war, fight against terrorism, he said.
Firouzabadi said the draft will be signed into a final document in the near future.
Negotiations and exchange of views between the two countries' military officials are required, he said.
Iranian Defense Minister Brigadier General Hossein Dehqan and Navy Commander Rear Admiral Habibollah Sayyari held separate meetings with the visiting deputy chief of staff of China's army in Tehran on Wednesday; IRNA reported.