The day began early and, staring into the sky for any hints of rain, I hopped on to my motorbike and headed to London. Conditions on the way up were blustery but dry, thankfully. My faithful BMW ate up the miles and after two hours I was heading into London on pretty empty roads. Ahead I saw blue flashing lights and in front of the police car dozens of motorcycles. By chance I'd met up with one of the escorted convoys that were being guided to Trafalgar Square for the start of Op Zulu. This was a parade of thousands of veterans to protest at the continuing witch-hunt of those who served in N Ireland during the Troubles. Former soldier Dennis Hutchings, who, aged 78, is dying from kidney and heart failure, has been charged for the murder of a Northern Irish man during the Troubles more than four decades ago. The fact that Mr Hutchings is still being pursued so long after the alleged offence is a disgrace in itself. This case highlights to many of us how unjust the system is when members of the IRA are walking around free after committing horrendous crimes. The fact is terrorists do not record their acts of violence. There are no witnesses to speak of and most terrorists escape justice to this day. I arrived in Parliament Square at about 1100, to find it empty. And just as I had parked up in front of a police bike, I heard this loud roar and down Whitehall came hundreds of motorbikes. They were followed by veterans on foot, an armoured car of the kind used in N Ireland and a Landrover. I soon met up with former Blue & Royal Paul Young, who took me over to meet Dennis Hutchings. He had come with his two charming daughters. Mr Hutchings sat in the Landrover and made a short speech thanking everyone with the use of a microphone. A former general then spoke eloquently about the need for justice and for this witch-hunt to end. A Member of the House of Lords then appeared and made a short speech. Mr Hutchings and I chatted for some time, before he was ushered off by his team to move further down Whitehall so that we could all ride past on our way home. I spoke to many veterans and there was genuine anger at politicians, which was aggravated by the Brexit betrayal. They are furious that so many MPs are acting against the 2016 referendum. We all remained in the Square for about two hours. The protest was good natured and calm. Then, we all mounted up and with a thunderous roar headed down Whitehall and past No 10. Horns were blasted at this point and the noise was deafening. We passed Mr Hutchings just before Trafalgar Square, when the police directed us down The Mall and away through Hyde Park. I would guess several thousand attended the event and their message was clear: we want justice for those who have served their Queen and country. No one is saying that soldiers should be immune from prosecution. It's important to make that clear. What we are all saying is that these ancient cases must be closed unless there is significance evidence to reopen them. A long ride home in very blustery conditions, just missing the rain which settled in all night.