Obituaries

Diplomat  Richard Holbrooke, 69, of complications from a ruptured aorta:

Mr. Holbrooke's expansive career began in Vietnam's Mekong Delta, where he served as a field officer, and included appointments as the U.S. ambassador to the United Nations and as one of the youngest assistant secretaries of state in U.S. history. When Republicans were in power, he was a banker, a journalist and a best-selling author.

His most prominent role was as a presidential wartime problem solver, to which Mr. Holbrooke applied an unwavering energy, a flair for diplomatic improvisation and a hard-charging style that could yield dramatic breakthroughs but also generate bitterness and enmity, even among his American teammates.