Here are a couple of articles in English about the “collective self defense” change to the constitution. It will be very useful to read articles in English for two reasons: 1) to familiarize yourself with the vocabulary necessary to discuss the issue, and 2) to see how the English-language media presents the topic. If you’re interested in this topic, don’t stop with these two articles. See what else you can find out.
Both images are from the second article, which is from Voice of America news.