How will the british government deal with irish terrorists now they have upped their campaign?

WE SEE FROM THEIR TREATMENT OF MUSLIMS THAT THEY WON'T TOLERATE TERRORISM,WILL THEY THEN INVADE AMERICA OR SOUTHERN IRELAND WHERE PLOTS ARE ORGANISED AND FUNDED,WILL WE HEAR THEM USING WORDS LIKE CATHOLICISM OR IRISHISTS TO WARN US WHO THE BOMBERS ARE,I AS ONE FEAR FOR MY FAMILIES SAFETY, I LIVE NEAR A BIG IRISH COMMUNITY,COME ON GORDON BROWN WITHDRAW FROM AFGHANISTAN AND INVADE IRELAND,MAKE OUR OWN COUNTRY SAFE