国际时政周评：俄乌和谈不确定性持续

Group 1: Geopolitical Developments - Ongoing uncertainty in Russia-Ukraine negotiations, with a 4.7% drop in the Russian RTS index and a 1.7% increase in Brent oil prices last week[4] - U.S. and EU leaders reached an agreement on a trade framework, while Canada announced the cancellation of several retaliatory tariffs against the U.S.[4] - Trump threatened large-scale sanctions or tariffs if direct talks between Russia and Ukraine do not occur within two weeks[4] Group 2: Future Focus Areas - Upcoming SCO summit from August 31 to September 1, with President Xi Jinping in attendance[4] - Continued monitoring of U.S.-India trade negotiations, with an additional 25% tariff on Indian exports to the U.S. set to take effect on August 27, bringing total tariffs to 50%[4] - Attention to the ongoing geopolitical conflicts, particularly the situation in Gaza and its implications for Israel's foreign strategy[4]