WASHINGTON, March 23 (Reuters) - Treasury Secretary Janet Yellen said on Thursday the United States was looking at ways to strengthen its sanctions against Iran, but acknowledged the sanctions had not resulted in the behavioral or policy changes Washington desires from Tehran.

The brief from the Caribbean governments, which was joined by a network of non-governmental organizations, follows a summit among regional leaders last month held in the Bahamas, where arms trafficking was a key topic.

The states filing the brief were California, Connecticut, Delaware, Hawaii, Illinois, Maryland, Massachusetts, Michigan, Minnesota, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island and Vermont.

TAIPEI, March 21 (Reuters) - Taiwan President Tsai Ing-wen will transit the United States to and from a visit to Central America on a trip starting at the end of this month, the presidential office said on Tuesday.

Novak Djokovic said he had no regrets about missing tournaments at Indian Wells and Miami due to his Covid-19 vaccination status but hoped that he would be allowed into the United States later this year for the US Open.

BRUSSELS, March 20 (Reuters) - European Union member states have agreed to supply one million rounds of artillery ammunition to Ukraine, Estonian Defence Minister Hanno Pevkur said on the sidelines of a meeting with his EU counterparts in Brussels on Monday.

President Xi Jinping on Wednesday closed a trip to Moscow that was closely watched in Washington, which considers China the greatest long-term adversary of the United States -- and which is also supporting Ukraine in its fight against Russian

The United States has historically been hostile to the ICC, with the previous Republican administration of Donald Trump imposing sanctions on the court's then-prosecutor for probing US military actions in Af

"In part as a result of having this very different worldview than we do, they have a marriage of convenience. I'm not sure if it's conviction," America's top diplomat told the Senate Foreign Relations