Port of Piraeus permanent navy base for the mighty Athenian fleet. However, in the late 4th century BC began a long period of decline for Piraeus; the harbours were only occasionally used for the Byzantine fleet and the city was mostly deserted throughout the Ottoman occupation of Greece. In 2002 PPA and the Greek government signed a concession agreement. The Greek government leased the port zone lands, buildings and facilities of Piraeus Port to PPA for 40 years. In 2008 the duration of the concession agreement was modified from 40 to 50 years. With this modification the lease is ending in 2052. Since
Piraeus Bank (today Piraeus Bank Beograd with 42 branches), and the Egyptian Commercial Bank (today Piraeus Bank Egypt with 43). In 2007 PB purchased the Cyprus arm of Arab Bank and renamed it Piraeus Bank (Cyprus). On 13 September 2007 Piraeus Bank completed its acquisition of 99.6% of the share capital of "International Commercial Bank" in Ukraine, today named Piraeus ICB. In June 2012 PB signed an agreement with Investors Bancorp Inc, to transfer PB's shareholding in Marathon Banking Corporation in New York City, to Investors Bancorp. PB used the money it received for Marathon to finance the take over of the