Three Dolphin class submarines are currently being built in German shipyards for the Israel Navy. Modern submarines with the most advanced sailing and combat systems in the world, they combine extensive sophistication with very easy operation. The first two submarines are already in Israel; and the third is expected within a few months. The purpose of these submarines is to enable the Israel Navy to meet all the tasks faced in the Mediterranean Sea in the 21st century. The crews of the submarines started training in 1994, and have participated in the building process as well as in the acceptance procedures for weapon systems.