DUBAI (Reuters) - Iran’s Revolutionary Guards confirmed on Sunday it had held war games in the Gulf over the past several days, saying they were aimed at “confronting possible threats” by enemies, the state news agency IRNA reported.
The U.S. military’s Central Command on Wednesday confirmed it has seen increased Iranian naval activity. The activity extended to the Strait of Hormuz, a strategic waterway for oil shipments the Revolutionary Guards have threatened to block.

Guards commander Mohammad Ali Jafari “expressed satisfaction over the successful conduct of the Guards naval exercise, emphasizing the need to maintain and enhance defense readiness and the security of the Gulf and the Strait of Hormuz and to confront threats and potential adventurous acts of enemies,” IRNA quoted Sharif as saying.

One U.S. official, speaking on condition of anonymity, said possibly more than 100 vessels were involved in the drills, including small boats.
https://www.reuters.com/article/us-i...-idUSKBN1KQ06U