Question: Kresy was composed of several voivodeships, and when the Second Polish Republic lost Wilno, which present-day city did it contain?
Context: The Wilno Voivodeship (Polish: "województwo wileńskie" ) was one of 16 Voivodeships in the Second Polish Republic, with the capital in Wilno (now Vilnius, Lithuania).  It was created in 1926 and populated predominantly by Poles with notable minorities of Belarusians, Jews and Lithuanians. The Słonim Ghetto (Polish: "getto w Słonimiu" , German: "Ghetto von Slonim" , Yiddish: סלאנים‎ ) was a Jewish World War II ghetto established in 1941 by the "Schutzstaffel" ("SS") in the prewar Polish city of Słonim located in the eastern region of Kresy (now Slonim, Belarus), occupied by Germany after the launch of Operation Barbarossa.  Before the joint Nazi-Soviet invasion of Poland in 1939 Słonim was a seat of the Słonim county in the Nowogródek Voivodeship of the Second Polish Republic.  The invading Soviets annexed the city along with the entire region to the Byelorussian SSR in an atmosphere of terror, and renamed it as Сло́ним (Slonim).  All inhabitants including Jews born in sovereign Poland were declared Soviet subjects by the NKVD.  Less than two years later the city was captured by the Wehrmacht.  The killings of Polish Jews by mobile extermination squads began almost immediately. Trochenbrod or Trohinbrod, also in Polish: Zofjówka "", or in Russian: Софиевка (Sofievka) , in Ukrainian: Трохимбрід (Trokhymbrid) , , was an exclusively Jewish shtetl – a small town, with an area of 1728 acre – located in the gmina Silno, powiat Łuck of the Wołyń Voivodeship, in the Second Polish Republic.  Following the invasion of Poland by Nazi Germany and the Soviet invasion of Poland in September 1939, Zofjówka (official Polish name) was renamed in Russian and incorporated into the new Volyn Oblast of the UkSSR.  Two years later, at the start of Operation Barbarossa in 1941, it was annexed by Nazi Germany into the "Reichskommissariat Ukraine" under a new Germanized name.  Trochenbrod (Zofjówka) was completely eradicated in the course of German occupation and the ensuing Holocaust.  The town used to be situated about 30 km northeast of Łuck in the Kresy macroregion (present-day western Ukraine).  The nearest villages of today are Yaromel (Яромель) and Klubochyn (Клубочин). Krystyna Wróblewska (1904 – 1994), was a Polish painter, graphic artist, book designer and member of the Polish Academy of Sciences.  She was the wife of Bronisław Wróblewski, Rector of the University of Stefan Batory in Wilno in the Second Polish Republic (now Vilnius, Lithuania), and mother of the iconic Polish postwar painter Andrzej Wróblewski born in Wilno in 1927.  Wróblewska studied fine arts under Ludomir Sleńdziński and Jerzy Hoppen during the interwar period and graduated from the Art Department of Wilno University in 1937, two years ahead of the Nazi-Soviet invasion of Poland.  In 1938 she went to Paris and continued her studies at the Académie de la Grande Chaumière. Polish Radio Wilno (Polish: "Polskie Radio Wilno" ) was a station of the Polish Radio, located in the city of Wilno (now Vilnius, Lithuania), which in the interbellum period belonged to the Second Polish Republic. In the Second Polish Republic, there was not a national, Second Division, as we know it today, although the creation of the second division was proposed on several occasions.  On Sunday, September 26, 1937 in Częstochowa, a conference of regional teams from across the nation took place, to discuss the creation of the league.  Officials of several clubs arrived, such as Brygada Częstochowa, Gryf Toruń, Śmigły Wilno, Rewera Stanisławów, Dąb Katowice, Unia Sosnowiec, Strzelec Janowa Dolina, and WKS Grodno.  Also, invited were officials of HCP Poznań, Podgorze Kraków, Naprzód Lipiny and Union Touring Łódź, but for unknown reasons they did not show up.  The officials talked about creation of a National "B-League", but nothing came out of this project.  Instead, in the years 1921-1939, several Voivodeships held their own games and those leagues were known as "A-Classes".  In 1927, the elite Polish Football League was created, which by the late 1930s consisted of 10 teams.  The teams that did not make it to the Ekstraklasa, played in the "A-Classes". 1937 peasant strike in Poland, also known in some Polish sources as the Great Peasant Uprising (Polish: "Wielki Strajk Chłopski" ) was a mass strike and demonstration of peasants organized by the People's Party and aimed at the ruling "sanacja" government.  It was the largest political protest in the Second Polish Republic, taking place in 12 voivodeships of the Second Polish Republic.  It is estimated that several million peasants took part in the demonstrations, and the strike was supported not only by Polish peasants, but also by the Ukrainian and Belarusian farmers, who made a majority in eastern part of the Second Polish Republic. Sztafeta (English: Relay race) is a 1939 book of literary reportage written by Melchior Wańkowicz.  "Sztafeta" was published in the year of the Nazi-Soviet invasion of Poland.  Due to popular demand it was reprinted four times already by "Biblioteka Polska" prior to the outbreak of hostilities.  The book was never reprinted in Communist Poland because it praised the democratic achievements of the prewar Second Polish Republic.  "Sztafeta" gives an account of one of the biggest economic projects of the interwar Poland, its Central Industrial Area.  The book has been described as a "colorful reporter's panorama, telling the story of the recovery of the Second Polish Republic".  Ryszard Kapuściński wrote that "Sztafeta" "was the first grand reportage of its kind in Poland's history – written about Polish production effort".  To write the book, Wańkowicz collected great amount of background information, and carried out dozens of interviews, starting with President of Poland Ignacy Mościcki, ending with sailors, coal miners and primary school teachers.  The book begins with analysis of the situation of Poland in 1918, right after World War I.  The country was in ruins, with two million houses destroyed, with devastated industry, with poverty, hunger and the threat of a cholera epidemic left behind by the partitioning empires.  The author goes on to describe the achievements of the Second Polish Republic, writing not only about the Central Industrial Area, but also about the construction of Gdynia seaport, and the political scandals such as annexation of Zaolzie.  The book was disliked by some members of the military establishment in Poland in 1939.  As they claimed, Wańkowicz too frequently criticized poverty and backwardness of Poland after a century of foreign occupation. Kresy Wschodnie or Kresy (] , Eastern Borderlands, or Borderlands) was a region of the Second Polish Republic during the interwar period constituting nearly half of the territory of the state; where the ethnic Poles, being the largest group, were roughly equal in their number to the size of the national minorities (with notable exceptions).  Administratively, the territory of Kresy was composed of voivodeships of Lwów, Nowogródek, Polesie, Stanisławów, Tarnopol, Wilno, Wołyń, and the Białystok.  Today, these territories are divided between Western Ukraine, Western Belarus, and south-eastern Lithuania, with such major cities as Lviv, Vilnius, and Grodno no longer in Poland.  In the Second Polish Republic the term "Kresy" roughly equated with the lands beyond the so-called Curzon Line, which was suggested after World War I in December 1919 by the British Foreign Office as the eastern border of the re-emerging sovereign Republic following the century of partitions.  In September 1939, after the Soviet Union joined Nazi Germany in their attack on Poland in accordance with the Molotov–Ribbentrop Pact, the territories were incorporated into Soviet Ukraine, Belarus and Lithuania in the atmosphere of terror. NORTOM is a Polish publishing house, founded in 1992 in Wrocław, specializing in books on Polish history with special focus on the Kresy region of the prewar Second Polish Republic, the Polish literature and political thought, including post-communist economic crises and nationalism.  It also publishes religious books for children and youth.  Nortom was founded by Norbert Tomczyk, re-elected in December 2000 as member of the Board of Control of the Polish Chamber of Book Publishers, a leader of the marginal National Party dissolved in 2001, whose ideology was based on that of the pre-war National Democratic movement, and which received 0.16% of the Polish vote in the presidential elections.
Answer: Vilnius, Lithuania