Two Iranian naval warships entered the Suez Canal this Tuesday, en route to the Mediterranean. Israel, which views Iran as a threat, has already called the move a 'provocation'. Iranian officials say the frigate and supply vessel are headed to Syria for a year-long training mission. It's the first time Iran's military ships have sailed those waters since the country's Islamic revolution of 1979. Egypt's Defence ministry says Iran's request stated the vessels would have no military equipment or nuclear materials onboard.