Why do you think the supporters of a stronger national government were able to overcome opposition to it and achieve its ratification

not to sure sdi, strategic defense initiative

to protect the united states' role as a world leader, president truman wanted to prevent the soviet union from spreading communism beyond its post-world war ii boundaries. he declared that the united states must assist any nations struggling to prevent a communist takeover.

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.