Complex sentence: On March 5,2014, the Israeli navy intercepted the Klos-C cargo ship that they claime Iran was using to smuggle dozens of long-range rockets to Gaza, including Syrian-manufactured M-302 rockets.
Split into simpler sentences: On March 5,2014, the Israeli navy intercepted the Klos-C cargo ship. Israel stated Iran was using the vessel to smuggle dozens of long-range rockets to Gaza, including Syrian-manufactured M-302 rockets.