How many countries were part of the Warsaw Pact in 1955?
8
3
4
3
4
3
5
4
3
5
4
3
5
4
3
5
4
3
5
4
3
5
4
3
2
6
5
4
3
2
1
6
5
4
3
7
2
1
6
5
4
3
7
2
1
6
5
4
3
7
2
1
6
5
4
3
7
2
1
6
5
4
3
7
2
1
6
5
4
3
7
2
1
6
5
4
3
8
7
2
1
11
6
5
4
3
8
7
2
1
11
6
5
4
3
8
13
7
2
1
11
6
5
4
3
8
13
7
2
1
11
6
9
5
4
8
13
7
2
1
11
6
9
5
12
8
13
7
2
1
11
6
10
9
5
12
8
13
16
14
7
2
1
11
6
10
9
12
8
13
16
14
7
2
1
11
6
28
10
9
12
8
13
16
14
7
2
66
30
1
11
6
28
10
27
9
12
25
8
13
16
14
7
2
30
1
11
6
28
66
10
27
9
63
62
0
67
58
57
77
61