Since 1990, Bulgaria has an unstable party system, in the past two decades differently dominated by the post-communist Bulgarian Socialist Party or by the right Union of Democratic Forces and recently by the new right-oriented party-Citizens for European Development of Bulgaria.

Since Bulgarian lev is anyway bounded to Euro Bulgaria is looking for more positive outcomes of the becoming a member of the Eurozone rather than risks.

Since these first accounts, Bulgarian authorities had organized several population censuses: 1892, 1900, 1905, 1910, 1920, 1926, 1934, 1946, 1956, 1965, 1975, 1985, 1992, 2001 and 2011.

Since the Bulgarians were not satisfied with the positions of the Pope after prolonged negotiations, they reached favorable agreement with the Byzantines and the decision was taken that the Bulgarian Church should become Eastern Orthodox.

Since December 2006, various sources, including the Bulgarian National Television, national newspapers, research agencies, the mayor's office, and local police, claim that Varna has a population by present address of over 500, 000, making it the nation's second-largest city.

Since the late 10th century, the names " Bulgarians " and " Bulgarian " got prevalence and became permanent designations for the local population, both in the literature and in the spoken language.

Since names in Bulgarian are gender-based, Bulgarian women have the-ova surname suffix ( Cyrillic :-овa ), for example, Maria Ivanova.

Since the late 1990s, Bulgarian authorities have switched to a new system avoiding the use of diacritics and optimized for compatibility with English.

Since the year 2000, Bulgarian archaeologist Georgi Kitov has made discoveries in Central Bulgaria which were summarized as " The Valley of the Thracian Kings ".

Since 1997, Bulgaria has been in a system of currency board and all Bulgarian currency in circulation has been backed 100 % by the foreign exchange reserves of the Bulgarian National Bank ( BNB ).

Since 2001 ( and also from 1991 – 1994 ) the DPS ( Movement for Rights and Freedoms ) party, composed almost entirely of Bulgarian Turks, has held the balance of power in Bulgarian politics.

Since the Greek headquarters did not know where the Bulgarian attack would take place, the Bulgarian Army would have temporary local superiority in the area chosen for the attack.

Since the Middle Ages it has been known as Δράμα in Greek and Драма in Bulgarian.

Since 1991 it has been entirely subordinate to the Holy Synod of the Bulgarian Orthodox Church.

Since 2005, he has also been vice president of the Bulgarian Football Union.

Since 1939 he was teaching at VGIK ( he was granted the title of professor in 1952 ) where he taught Bulgarian animator Todor Dinov among others, through 1987.

Since its establishment, the football section of the sports club has won the championship once and has been a runner-up for the Bulgarian Cup competition twice.

Since the group's inception, Huun Huur Tu has collaborated with musicians from many genres, such as Frank Zappa, Johnny " Guitar " Watson, the Kodo drummers, The Moscow Art Trio, the Kronos Quartet, Hazmat Modine, The Chieftains and Bulgarian woman's singing group, Angelite.

Since 2001 it is part of the Coalition for Bulgaria, an alliance led by the Bulgarian Socialist Party.

Since 1972, the city's name is Dimitrovgrad, after the Bulgarian communist Georgi Dimitrov.

Since the Persian force obviously contained a high proportion of missile troops, a static defensive position would have made little sense for the Athenians ; the strength of the hoplite was in the melee, and the sooner that could be brought about, the better, from the Athenian point of view.

Since October 1998, Chadian Movement for Justice and Democracy ( MDJT ) rebels, led by Youssuf Togoimi until his death in September 2002, have skirmished with government troops in the Tibesti region, resulting in hundreds of civilian, government, and rebel casualties, but little ground won or lost.

Since 1990 ECOWAS has been engaged in a peacekeeping mission in Liberia to which Ghana has contributed a large contingent of troops.

Since the Spanish guerrillas seemed to be uncontrollable, the French troops eventually evacuated Spain.

Since December 20, 1999, the defense of Macau has been the responsibility of the Chinese People's Liberation Army ( PLA ), which stations between 500-600 troops in the Macau Special Administrative Region of the People's Republic of China, primarily as a symbolic presence to underscore Chinese sovereignty.

Since World War II, Iraq's use of mustard gas against Iranian troops and Kurds ( Iran-Iraq war of 1981 – 1988 ) has been the only large-scale use of any chemical weapons.

* Since November 1997, Slovenia has participated in its first United Nations peacekeeping operation, contributing 27 troops to an Austrian UNFICYP contingent on Cyprus.

Since the last Russian troops left in 1994, Estonia has been free to promote economic and political ties with Western Europe.

Since 2003, when President François Bozizé came to power, thousands of citizens of the Central African Republic have been forced to flee their homes as a result of the escalating conflict between armed rebels and government troops.

Since the end of XI century the area was conquered by Swedish, Norman, Angevin and Aragonese troops.

Since the United Nations refused to help suppress the rebellion in Katanga, Lumumba sought Soviet aid in the form of arms, food, medical supplies, trucks, and planes to help move troops to Katanga.

Since the bulk of both troops and aircraft were American, Brereton, a U. S. Army Air Forces officer, was named by Eisenhower on 16 July and appointed by SHAEF on 2 August.

Since Prittwitz had already ordered the German troops to pull back via train, Ludendorff directed I Corps to alight near Deutsch-Eylau to cover the left flank of XX Corps, who had been in front of the Second Army since before the battle at Gumbinnen.

Since the islets had an " undefined internal status ", the immigrants did not benefit from the Spanish immigration laws and, under a joint operation, Spanish troops tended to the women, children, and medical needs of the immigrants, then turned them back over to Morocco.

Since 2002, by a Royal Order issued by Albert II of Belgium the three independent armed forces were merged into one unified structure and organised with four components which consists of about 47, 000 active troops.

Since that would end all interstellar transit, the Guild sides with Paul, threatening to strand the Emperor and his troops on Arrakis if he does not accede.

Since the two tasks went hand in hand and were done by the same troops, native Indian engineer corps came to be called ' sappers and miners '.

Since there were not as many Japanese troops in south China as in the north, the local leaders assisted the Japanese in administering the areas.

Since the French forces also were engaged in warfare elsewhere this increasingly reduced the number of troops stationed around Stralsund.

Since 1994, the Bundeswehr has lost about 100 troops in deployments abroad.

Since the worst was still to come, John of Portugal ordered the archers and crossbowmen to retire, while his rear troops advanced through the space opened between the vanguards.

Since the transport ships needed to bring American troops to Europe were scarce at the beginning, the army pressed into service cruise ships, seized German ships, and borrowed Allied ships to transport American soldiers from New York, New Jersey, and Newport News, Virginia.

Since the Chinese troops at Mukden had put up such a poor resistance, he told Manchukuo Emperor Puyi that this was proof that the Chinese remained loyal to him.

Since the place was conquered by Al Malik Adh Dhahir from the Franks, it has been made the central station for the troops who guard all the coast-towns of that district.

Since then, Xiahou was made General-of-the-Right, and stationed in Longxi to train troops ; he treated both his militia and common soldiers well, and gained their support.