Final answer:
The collapse of the USSR had a strong negative effect on Cuba but a positive effect on the United States and Germany. It did not have a significant direct negative effect on Montenegro.
Step-by-step explanation:
The collapse of the USSR had a strong negative effect on Cuba. Before the collapse, Cuba heavily relied on economic and military support from the Soviet Union. With the disintegration of the USSR, Cuba faced severe economic hardships due to the loss of this support. The country experienced a period of economic decline and political instability.
On the other hand, the collapse of the USSR had a positive effect on the United States and Germany. The end of the Cold War and the dissolution of the Soviet Union allowed the United States to emerge as the sole superpower in the world. It also led to a reunified and strengthened Germany.
The collapse of the USSR did not have a significant direct negative effect on Montenegro as it was a part of the Federal Republic of Yugoslavia at the time. However, the subsequent breakup of Yugoslavia and the wars that followed had a significant impact on Montenegro.
Learn more about The effects of the collapse of the USSR