Comprehensive Xinhua News Agency reporters abroad reported that Russian officials confirmed on the 21st that Russia and Ukraine had exchanged captured personnel for the first time. Ukrainian President Zelensky said on the same day that the issue of "compromise mode" in the negotiations between Ukraine and Russia will be decided by Ukrainian referendum. —— The human rights representative of the Russian Federation, Tatyana moskalikova, confirmed in a media interview on the 21st that Russia and Ukraine had exchanged prisoners for the first time, and nine Russian soldiers were released. In exchange, the mayor of melitopol, zaporoge state, Ukraine, was released at the same time. —— Zelensky said on the 21st that Ukraine has not been accepted by NATO, so Ukraine needs to remain calm and seek other security guarantees, and the issue of security may involve changes in the Ukrainian constitution and existing laws. These changes may be historic and will be decided by referendum. The Ukrainian people must express their views and make choices on certain "compromise models". —— According to Ukrainian media reports, the Ukrainian negotiator and adviser to the Ukrainian President's office podoliyak said on the 21st that the Ukrainian Russian negotiating delegation will draw up a preliminary agreement, submit it to the presidents of the two countries for evaluation, and then decide whether the two will meet. Podoliyak said that the Ukrainian Russian leaders' meeting is the key to peace, but there is no specific date for the meeting. —— In view of the "unacceptable" remarks made by US President Biden against Russian President Vladimir Putin, the Russian Foreign Ministry took diplomatic action on the same day, summoned US ambassador to Russia Sullivan and sent a note of protest to him, the Russian Foreign Ministry said in a statement on its website on the 21st. The communique pointed out that Biden's remarks were not due to high-level politicians such as the president of the United States, which made Russia US relations on the verge of rupture. —— In view of the obvious unfriendly nature of Japan's recent unilateral restrictive measures against Russia, Russia does not intend to continue negotiations on a peace treaty with Japan, the Russian Foreign Ministry said in a statement on its website on the 21st. At the same time, Russia decided to terminate the policy of visa free travel of Japanese citizens to the South Kuril Islands (Japan called the four northern islands) and withdraw from the dialogue with Japan on joint economic activities in the South Kuril Islands. —— According to the notice released on the official website of the Russian Ministry of defense, the head of the Russian national defense command center mizitsev said at the briefing on the evening of the 21st that in response to the Russian side's previous initiative to open the Mariupol humanitarian channel on the 21st, the Ukrainian side refused on the same day and prohibited armed personnel from laying down their weapons. Mizitsev also said that since March 2, Russia has delivered 4165 tons of humanitarian supplies to Ukraine and carried out 513 humanitarian operations. —— Russian Defense Ministry spokesman Konashenkov said on the 21st that the Russian army used long-range high-precision weapons to destroy the Ukrainian army's multiple rocket launchers and a warehouse storing ammunition deployed in an abandoned shopping center on the outskirts of the capital Kiev. —— Kiev municipal government announced on the 21st that Kiev will impose martial law from 20:00 on the 21st to 7:00 on the 23rd. Citizens and vehicles are prohibited from activities in the urban area without special passes. All shops, supermarkets, pharmacies, gas stations and other facilities in Kiev will stop operating throughout the day. This is the second time in the past week that Kiev has imposed a long period of martial law. (Xinhua News Agency)