NEW YORK — Target has fired the president of its troubled Canadian operations, Tony Fisher, and is replacing him with a 15-year U.S. company veteran.

The third-largest U.S. retailer announced Tuesday that Mark Schindele, 45, who was senior vice president of merchandising operations, will now run the Canadian operation. The changes are effective immediately.

Schindele has played a key role in launching new store formats like Target Express and CityTarget in the U.S. He has also led a global team and provided senior-level oversight to Target’s merchandising operations, including systems, global sourcing and product development.

Schindele will report to Kathee Tesija, chief merchandising and supply chain officer, whose responsibilities include Target Canada.

Target, based in Minneapolis, also said that it will be naming a nonexecutive chair in Canada. In its newly created advisory role, the chair will provide counsel and support to the president of Target Canada to ensure all strategies and tactics align with the Canadian marketplace.

The company also announced the promotions of three senior merchandising executives in its U.S. division as it tries to be more nimble in bringing in trendy products into stores more quickly.

Target is trying to fix its flailing operations in Canada, its first foray outside the U.S., while revitalizing business in the U.S. It’s also trying to recover from a massive data breach in the U.S. that has cost it customer trust.

The botched Canadian expansion and the data breach were the two main factors behind the abrupt departure of the company’s CEO Gregg Steinhafel, who left two weeks ago. Target’s Chief Financial Officer John Mulligan is serving as interim CEO.