Did Spain ever invade Ireland

Answer 1

No.

Yes. Irish tribes raided the coast of England for hundreds of years before England united and hired mercenaries to defend their coast lines.

Wikipedia

IRA attacks on English soil.

19th century

• Attacks by the Fenians 1867-1885:
  • In 1867, a bomb planted by Fenians at New Prison in Clerkenwell exploded, killing several passers-by.[1]
  • In 1883, a co-ordinated attack at several public buildings across London resulted in a number of explosions, including one within Scotland Yard itself, the headquarters of theMetropolitan Police Service.[2]
  • On 25 January 1885 Fenians detonated bombs at a number of locations in central London, including London Bridge, the House of Commons and the Tower of London

• 0n 20 January 1885 the London Underground system was targeted for the first time. A bomb exploded on a Metropolitan Line train at Gower Street (now Euston Square) tube station.
• In 1894, Greenwich Observatory attacked with a bomb. A French anarchist, the only person who died in the attack apparently due to mishandling of the weapon, was the perpetrator, and later became famous after a reference was included in Joseph Conrad's book The Secret Agent.[3]

Irish republican attacks during the Second World WarMain article: S-Plan

On 16 January 1939, the Irish Republican Army (IRA) launched a campaign of bombing and sabotage against the civil, economic, and military infrastructure of the United Kingdom. The campaign petered-out in early 1940.

1939

• January 16: a bomb exploded outside the control room of a large power station, which supplied the whole of south-east England with electricity. It created a large crater in the forecourt of the building. There were no casualties and the control station was reportedly undamaged. A second explosion damaged an overhead cable running from Grand Union Canal to Willesden Power Station.
• January 17: a bomb exploded at Williams Deacons Bank, damaging gas mains.
• February 4: two bombs exploded in the London Underground - one at Tottenham Court Road station and one at Leicester Square station. They were timed suitcase bombs stored in the left-luggage rooms overnight. There were no deaths, although two people were wounded and severe damage was done to the stations.
• February 9: two bombs exploded at King's Cross station.
• March 2: a bomb exploded on an aqueduct for the Grand Union Canal near Stonebridge Park.
• March 23: five bombs exploded at different times during the day. Targets included telephone and gas installations, and the offices of the News Chronicle in Fleet Street.
• March 29: two bombs exploded on Hammersmith Bridge.
• March 31: seven bombs exploded in different parts of the city.
• May 5: two bombs exploded.
• June 10: bombs exploded in thirty post offices and postboxes in London, Birmingham and Manchester.
• June 24: several bombs exploded before or after a republican demonstration (under police protection) demanding the release of IRA volunteers.[4]
• June 24: bombs exploded at the London branches of the Midland Bank, Westminster Bank and Lloyds Bank.
• July 26: two bombs exploded in the London Underground - one in the left-luggage area of King's Cross Station and one in the left-luggage area of Victoria Station. In the King's Cross attack, one man was killed and two wounded. In the Victoria Station attack five were wounded.

1940

• February 6: two bombs exploded in mailbags at Euston Station.
• February 23: two bombs exploded in the West End. The devices had been placed in litter bins. Thirteen people were wounded.

Irish republican attacks during "the Troubles"See also: The Troubles, Chronology of Provisional Irish Republican Army actions, and Timeline of Irish National Liberation Army actions

In many cases telephoned warnings were given about bombs due to explode, identified as genuine by the use of a code word. In some cases the warning gave the wrong location, or did not give enough time to evacuate the area. Hoax calls, which caused disruption, were often made.

1970-1979

• 8 March 1973: The Provisional Irish Republican Army (IRA) conducted its first operation in Britain, planting four car bombs in London. Two bombs exploded, killing one person and injuring 180 others. Ten members of the IRA team, including Gerry Kelly, Dolours Price and Marian Price, were arrested at Heathrow Airport trying to leave the country.[5]
• 17 June 1974: A bomb exploded at the Houses of Parliament in London, causing extensive damage and injuring 11 people.[6]
• 7 November 1974: An off-duty soldier and a civilian were killed when a bomb was thrown through the window of the Kings Arms pub in Woolwich, and 28 people were injured.[7]
• 21 December 1974: A bomb was defused in Harrods department store in Knightsbridge, London. A second bomb was defused in the King's Arms public house in Warminster,Wiltshire.[7]
• 28 August 1975: Seven people were injured when a bomb exploded in Oxford Street, London. A telephone warning was issued to The Sun newspaper five minutes before the explosion.[8]
• 5 September 1975: Two people were killed and 63 injured when an IRA bomb exploded in the lobby of the Hilton hotel in London.[9]
• 6-12 December 1975: Four IRA members held two people hostage in the Balcombe Street Siege.[10]
• 27 March 1976: A bomb placed by the Provisional IRA exploded in a litter bin at the top of an escalator in a crowded exhibition hall, Earl's Court. 20,000 people were attending the Daily Mail Ideal Home Exhibition at the time. 70 were injured, 4 people lost limbs.[11]
• 30 March 1979, Shadow Northern Ireland Secretary Airey Neave was killed as he left the House of Commons car park by a car bomb planted by the Irish National Liberation Army(INLA) in 1979.[12][13]

1980-1989

• 10 October 1981: a bomb blast on Ebury Bridge Road next to Chelsea Barracks kills two people and injures 39.
• 26 October 1981: a bomb planted by the IRA in a Wimpy Bar on Oxford Street kills Kenneth Howorth, the Metropolitan Police explosives officer who is attempting to defuse it.
• 20 July 1982: Two bombs in Hyde Park and Regent's Park, London by the Provisional Irish Republican Army (IRA) kill 11 members of the Household Cavalry and the Royal Green Jackets. Seven horses are also killed.
• 17 December 1983: Harrods was bombed by the IRA. Six people were killed (including three police officers) and 90 wounded during Christmas shopping at the West London department store. (See Harrods bombing)

1990-1999

• 16 May 1990: Wembley IRA detonate a bomb underneath a minibus killing Sgt Charles Chapman (The Queen's Regiment) and injuring another soldier. No one was ever convicted of Sgt Chapmans murder.
• 20 July 1990: London Stock Exchange, the IRA exploded a large bomb at the London Stock Exchange causing massive damage.
• 18 February 1991: A bomb explodes in Paddington Station, damaging the building's roof but causing no casualties. Three hours later another bomb explodes at Victoria Station. One man is killed and 38 people injured.
• 10 January 1992: Small device exploded. No injuries, Whitehall Place, London SW1.
• 28 February 1992: A bomb explodes at London Bridge station injuring 29 people.
• 10 April 1992: A large bomb explodes outside 30 St Mary Axe in the City of London. The bomb was contained in a large white truck and consisted of a fertilizer device wrapped with a detonation cord made from Semtex. It killed three people: Paul Butt, aged 29, Baltic Exchange employee Thomas Casey, aged 49, and 15-year old Danielle Carter. The bomb also caused damage to surrounding buildings (many of which again be damaged by a second bomb the following year). The bomb caused £800 million worth of damage-£200 million more than the total damage costs resulting from all 10,000 previous explosions that had occurred relating to the Troubles in Northern Ireland. A new skyscaper was built on the site of the previous historic building.[14]
• 12 October 1992: A device exploded in the gentlemen's toilet of the Sussex Arms public house in Covent Garden, killing one person and injuring four others.
• 16 November 1992: the IRA planted bomb at Canary Wharf in the Docklands. The bomb was spotted by security guards and the bomb was deactivated safely.
• 27 February 1993: a bomb exploded in a litter bin outside a McDonalds restaurant in Camden Town, injuring several people[15].
• 24 April 1993 Bishopsgate bombing: the IRA detonated a huge truck bomb in the City of London at Bishopsgate, It killed journalist Ed Henty, injured over 40 people, and causing approximately £1 billion worth of damage,[16] including the destruction of St Ethelburga's Bishopsgate church, and serious damage to Liverpool Street station. Police had received a coded warning, but were still evacuating the area at the time of the explosion. The insurance payments required were so large that Lloyd's of London almost went bankrupt under the strain, and there was a crisis in the London insurance market. The area had already suffered damage from the Baltic Exchange bombing the year before.
• March 1994 Heathrow Airport, The IRA launched a series of mortar attacks on the airport, partially paralysing the capital's main air route.
• 9 February 1996 Docklands bombing: the IRA bombed the South Quay area of London, killing two people.
• 15 February 1996: A 5-pound (2.3 kg) bomb placed in a telephone box is disarmed by Police on the Charing Cross Road.
• 18 February 1996: An improvised high explosive device detonates prematurely on a bus travelling along Aldwych in central London, killing Edward O'Brien, the IRA operative transporting the device and injuring eight others.[17]

Real IRA attacks after the Belfast Agreement2000

• September 2000, The Real IRA, a group which had split from the Provisional IRA, launch a Soviet RPG-22 anti-tank rocket from a disposable launcher at the MI6 building in centralLondon, causing damage.

2001

• 4 March 2001 BBC bombing: At around 00:30 GMT, the Real IRA detonated a bomb outside the BBC's main news centre in the Shepherd's Bush area of West London.
• 6 May 2001: A bomb exploded at a Royal Mail sorting office in Colindale, London at 01.53 GMT, injuring one person. This bomb came just three weeks after an almost identical blast at the same office.[18]
• 3 August 2001 Ealing bombing: A car bomb containing 45 kilograms of explosives detonated in Ealing Broadway, West London, injuring seven.

Answer 2

No.

It was not a real invasion of Ireland, but in 1601 King Phillip III of Spain sent an expedition under the command of Juan del Águila to support the Irish rebels O'Donell and O'Neill. The troops landed in the city of Kinsale and remained there until, surrounded by the English troops and without posibilities of receiving Irish help, they surrendered after the battle of Kinsale.

Earlier in 1588, up to 24 ships of the Armada were wrecked on a rocky coastline spanning 500 km, from Antrim in the north to Kerry in the south, and the threat to Crown authority was readily defeated. Many of the survivors of the multiple wrecks were put to death, and the remainder fled across the sea to Scotland. It is estimated that 5,000 members of the fleet perished in Ireland.

Not exactly an 'invasion' force.

Answer 3

I wouldn't characterize it as a full scale invasion more like a raid.

In 1631 Algerian pirates and Turkish troops stormed ashore at the little harbour village of Baltimore in West Cork. They captured almost all the villagers and bore them away to a life of slavery in North Africa. Only two of them ever saw Ireland again.

The Sack of Baltimore was the most devastating invasion ever mounted by Islamist forces on Ireland or England.
I wouldn't characterize it as a full scale invasion more like a raid.

In 1631 Algerian pirates and Turkish troops stormed ashore at the little harbour village of Baltimore in West Cork. They captured almost all the villagers and bore them away to a life of slavery in North Africa. Only two of them ever saw Ireland again.

The Sack of Baltimore was the most devastating invasion ever mounted by Islamist forces on Ireland or England.