I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "On 1 January 1967, Yugoslavia was the first communist country to open its borders to all foreign visitors and abolish visa requirements. In the same year Tito became active in promoting a peaceful resolution of the Arab–Israeli conflict. His plan called for Arabs to recognize the state of Israel in exchange for territories Israel gained."? 

What is opposite of violent?