<s>[INST] The next text is a question of a member of the European parliament:"On 1 May 2004, ten new states will join the European Union and will take part in European elections for the first time on 13 June. It is hoped that a further two candidate countries, Bulgaria and Romania, will join the European Union, in 2007 provided that they meet the political and economic conditions referred to as the Copenhagen criteria.  Croatia has asked to start negotiations to join the European Union.  What action is the European Commission taking to encourage the opening of negotiations with Croatia in March 2004?"
Analyze carefully the text and assign it to the most relevant policy area among those listed below. Do not explain your answer and return only a number.
Policy area numbers: 1 = Macroeconomics
2 = Civil Rights, Minority Issues and Civil Liberties
3 = Health
4 = Agriculture and Fisheries
5 = Labour, employment and pensions
6 = Education
7 = Environment
8 = Energy
9 = Immigration
10 = Transportation
12 = Law and Crime
13 = Social welfare
14 = Regional and Urban issues and Planning
15 = Banking, finance and domestic commerce issues
16 = Defence
17 = Space, science, technology, and communications issues
18 = Foreign trade
19 = International affairs and foreign aid
20 = Governance and government
21 = Public Lands, Water Management and Territorial Issues
23 = Culture and media
[/INST]. Answer = [19]. </s>
On 1 May 2004, ten new states will join the European Union and will take part in European elections for the first time on 13 June. It is hoped that a further two candidate countries, Bulgaria and Romania, will join the European Union, in 2007 provided that they meet the political and economic conditions referred to as the Copenhagen criteria.  Croatia has asked to start negotiations to join the European Union.  What action is the European Commission taking to encourage the opening of negotiations with Croatia in March 2004?