Since 1928, The Ontarios have maintained a strong friendship and alliance with its allied British regiment, the Royal Welsh (Formerly The Welch Regiment (41st of Foot) which amalgamated with the South Wales Borderers (24th of Foot) to form The Royal Regiment Of Wales (RRW) in 1969.) In 2006, under a further reorganization of the British Army, the RRW was amalgamated with the Royal Welsh Fusiliers (RWF) to form the Royal Welsh Regiment (RWR). Several exchange visits have taken place over the years. In 1969, officers and men of the Ontarios performed 'groundskeeping' duties on the occasion of the Welsh’s amalgamation parade at Cardiff Castle, and Capt Russell Baird represented the Ontarios at the Investiture in Caernarvon. In September 1983, a small group of Welsh officers and soldiers were on parade in Oshawa on the occasion of the Ontarios’ change of command. In July 1989, the Ontarios sent a 35-man guard to Wales for the RRW’s Tercentenary parade at Cardiff Castle. HRH
Charles, Prince of Wales the longtime
Colonel-in-Chief of the Welsh, inspected the Regiment. The Welsh reciprocated in 1991 by providing a guard for a parade at Iroquois Park in
Whitby, Ontario to mark the Ontarios’ 125th anniversary. More recently, in September 2004, the Welsh band toured many of its
War of 1812 battlefields near
Niagara and encampments throughout Ontario including
Kingston, Ontario. The band also visited Oshawa to perform at the Ontarios' annual Parkwood Promenade, held at the home of Colonel R.S. McLaughlin, the unit's former patron and long-serving honorary colonel. The Ontario Regiment received the Freedom of the city of Oshawa and the County of Ontario in 1966 and the Freedom of the Regional Municipality of Durham in 1979. A complete historical list of the unit's key appointments is available online at the Regimental Museum's official website. ==Battle honours==