government; according to some experts the well-known personalities that fought on both sides of the civil war and have held the positions in the government after the armistice was signed are now involved in the drug trade. UNODC is working with Tajikistan to strengthen border crossings, provide training, and set up joint interdiction teams. It also helped to establish Tajikistani Drug Control Agency. Tajikistan is also an active member of the Economic Cooperation Organization (ECO). Besides Russia, China is one of the major economic and trade partners of Dushanbe. Tajikistan belongs to the group of countries associated with Chinese investment within the Belt and Road Initiative. Transportation In 2013 Tajikistan, like many of the other Central Asian countries, was experiencing major development in its transportation sector. As a landlocked country, Tajikistan has no ports and the majority of transportation is via roads, air, and rail. In recent years Tajikistan has pursued agreements with Iran and Pakistan to gain port access in those countries via Afghanistan. In 2009, an agreement was made between Tajikistan, Pakistan, and Afghanistan to improve and build a highway and rail system connecting the three countries to Pakistan's ports. The proposed route would go through the Gorno-Badakhshan Autonomous Province in the eastern part of the country. And in 2012, the presidents of Tajikistan, Afghanistan, and Iran signed an agreement to construct roads and railways as well as oil, gas, and water pipelines to connect the three countries. Rail The railroad system totals only of track, all of it broad gauge. The principal segments are in the southern region and connect the capital with the industrial areas of the Hisor and Vakhsh valleys and with Uzbekistan, Turkmenistan, Kazakhstan and Russia. Most international freight traffic is carried by train. The recently constructed Bokhtar–Kulob railway connected the Kulob District with the central area of the country. Air In 2009 Tajikistan had 26 airports, 18 of which had paved runways, of which two had runways longer than 3,000 meters. The country's main airport is Dushanbe International Airport, which as of April 2015 had regularly scheduled flights to major cities in Russia, Central Asia, as well as Delhi, Dubai, Frankfurt, Istanbul, Kabul, Tehran, and Ürümqi, amongst others. There are also international flights, mainly to Russia, from Khujand Airport in the northern part of the country as well as limited international services from Kulob Airport, and Bokhtar International Airport. Khorog Airport is a