Midday Key Developments on March 15

7:00 (UTC+8) - 12:00 (UTC+8) Keywords: Ukraine, Vitalik, Aave1. Trump stated that he will not reach a ceasefire agreement with Iran for the time being;2. Iran launched the 52nd round of the "True Commitment-4" military operation;3. Senior Iranian official: Ukraine has become a legitimate target for Iran;4. Vitalik: The separation architecture between Ethereum Beacon Chain and execution clients should be reconsidered;5. Aave will launch the Aave Shield feature, which by default blocks swaps with price impact greater than 25%;6. GSR Content Director: Tether has made frequent investments in recent months, with disclosed amounts exceeding 1.6 billions.