The next batch of Chelsea Pensioners records has been released (see 9 May 2010 post), adding almost 100,000 new British Army Service Records to the existing collection on www.findmypast.co.uk.
This latest tranche of records covers 1855-1872 and includes 96,434 records and 437,825 images for the period.
Many Irish soldiers served in the British Army in this period, so you could find information on relatives that you can't find elsewhere.
Most other military collections contain only records of officers. This collection, however, relates to other ranks where most Irish served.