A 30-couniry sample from the Conflict and Peace Data Bank (COPDAB) is used and divided into three blocs, namely, a Western bloc, a Middle Eastern bloc, and an Eastern bloc, to represent the three parties.
A 30-couniry sample from the Conflict and Peace Data Bank (COPDAB) is used and divided into three blocs, namely, a Western bloc, a Middle Eastern bloc, and an Eastern bloc, to represent the three parties.
使用冲突与和平数据库三十国样本，并将它分为三个第三国区块：西方区块、中东区块及东方区块。