Moscow, April 4 (Sputnik/UNI) Iran will notify friendly countries, including Russia, if it decides to negotiate with the United States, an Iranian diplomatic source told reporters."Iran will notify its friends, including Russia, if it decides to negotiate with the US," the source said.The source said Iran is ready to show complete transparency toward Russia on the issue.US President Donald Trump previously stated that Washington and Tehran had held productive talks. The Iranian Foreign Ministry denied direct dialogue, but said Tehran had received messages through intermediaries about Washington's desire to initiate dialogue to end the conflict.On February 28, the United States and Israel launched strikes on targets in Iran, including in Teh...